diff mbox series

[v2] hw/ide: Emulate SiI3112 SATA controller

Message ID 20171216224842.EE8C17456B3@zero.eik.bme.hu
State New
Headers show
Series [v2] hw/ide: Emulate SiI3112 SATA controller | expand

Commit Message

BALATON Zoltan Dec. 16, 2017, 10:42 p.m. UTC
This is a common generic PCI SATA controller that is also used in PCs
but more importantly guests running on the Sam460ex board prefer this
card and have a driver for it (unlike for other SATA controllers
already emulated).

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
---
v2: Addressed review comments:
- Replaced debug printf with trace
- Added comments about BAR mappings and reference to data sheet
- Maintained with the sam460ex PPC machine and not with rest of hw/ide

 MAINTAINERS                        |   6 +
 default-configs/ppcemb-softmmu.mak |   1 +
 hw/ide/Makefile.objs               |   1 +
 hw/ide/sii3112.c                   | 368 +++++++++++++++++++++++++++++++++++++
 hw/ide/trace-events                |   5 +
 5 files changed, 381 insertions(+)
 create mode 100644 hw/ide/sii3112.c

Comments

David Gibson Dec. 18, 2017, 4:09 a.m. UTC | #1
On Sat, Dec 16, 2017 at 11:42:39PM +0100, BALATON Zoltan wrote:
> This is a common generic PCI SATA controller that is also used in PCs
> but more importantly guests running on the Sam460ex board prefer this
> card and have a driver for it (unlike for other SATA controllers
> already emulated).
> 
> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>

I don't know enough about IDE to give this any more than a quick check
for anything obviously bogus looking.  So,

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

John, can you take this through your tree, or should I take it through
the ppc tree?

> ---
> v2: Addressed review comments:
> - Replaced debug printf with trace
> - Added comments about BAR mappings and reference to data sheet
> - Maintained with the sam460ex PPC machine and not with rest of hw/ide
> 
>  MAINTAINERS                        |   6 +
>  default-configs/ppcemb-softmmu.mak |   1 +
>  hw/ide/Makefile.objs               |   1 +
>  hw/ide/sii3112.c                   | 368 +++++++++++++++++++++++++++++++++++++
>  hw/ide/trace-events                |   5 +
>  5 files changed, 381 insertions(+)
>  create mode 100644 hw/ide/sii3112.c
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 45e2e20..2ec47db 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -761,6 +761,12 @@ L: qemu-ppc@nongnu.org
>  S: Odd Fixes
>  F: hw/ppc/virtex_ml507.c
>  
> +sam460ex
> +M: BALATON Zoltan <balaton@eik.bme.hu>
> +L: qemu-ppc@nongnu.org
> +S: Maintained
> +F: hw/ide/sii3112.c
> +
>  SH4 Machines
>  ------------
>  R2D
> diff --git a/default-configs/ppcemb-softmmu.mak b/default-configs/ppcemb-softmmu.mak
> index 13917fb..5db4618 100644
> --- a/default-configs/ppcemb-softmmu.mak
> +++ b/default-configs/ppcemb-softmmu.mak
> @@ -16,3 +16,4 @@ CONFIG_I8259=y
>  CONFIG_XILINX=y
>  CONFIG_XILINX_ETHLITE=y
>  CONFIG_SM501=y
> +CONFIG_IDE_SII3112=y
> diff --git a/hw/ide/Makefile.objs b/hw/ide/Makefile.objs
> index f0edca3..fc328ff 100644
> --- a/hw/ide/Makefile.objs
> +++ b/hw/ide/Makefile.objs
> @@ -11,3 +11,4 @@ common-obj-$(CONFIG_MICRODRIVE) += microdrive.o
>  common-obj-$(CONFIG_AHCI) += ahci.o
>  common-obj-$(CONFIG_AHCI) += ich.o
>  common-obj-$(CONFIG_ALLWINNER_A10) += ahci-allwinner.o
> +common-obj-$(CONFIG_IDE_SII3112) += sii3112.o
> diff --git a/hw/ide/sii3112.c b/hw/ide/sii3112.c
> new file mode 100644
> index 0000000..e2f5562
> --- /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)
> diff --git a/hw/ide/trace-events b/hw/ide/trace-events
> index 601bd97..0c39cab 100644
> --- a/hw/ide/trace-events
> +++ b/hw/ide/trace-events
> @@ -37,6 +37,11 @@ bmdma_addr_write(uint64_t data) "data: 0x%016"PRIx64
>  bmdma_read(uint64_t addr, uint8_t val) "bmdma: readb 0x%"PRIx64" : 0x%02x"
>  bmdma_write(uint64_t addr, uint64_t val) "bmdma: writeb 0x%"PRIx64" : 0x%02"PRIx64
>  
> +# hw/ide/sii3112.c
> +sii3112_read(int size, uint64_t addr, uint64_t val) "bmdma: read (size %d) 0x%"PRIx64" : 0x%02"PRIx64
> +sii3112_write(int size, uint64_t addr, uint64_t val) "bmdma: write (size %d) 0x%"PRIx64" : 0x%02"PRIx64
> +sii3112_set_irq(int channel, int level) "channel %d level %d"
> +
>  # hw/ide/via.c
>  bmdma_read_via(uint64_t addr, uint32_t val) "bmdma: readb 0x%"PRIx64" : 0x%02x"
>  bmdma_write_via(uint64_t addr, uint64_t val) "bmdma: writeb 0x%"PRIx64" : 0x%02"PRIx64
> -- 
> 2.7.6
>
BALATON Zoltan Dec. 18, 2017, 12:30 p.m. UTC | #2
On Mon, 18 Dec 2017, David Gibson wrote:
> On Sat, Dec 16, 2017 at 11:42:39PM +0100, BALATON Zoltan wrote:
>> This is a common generic PCI SATA controller that is also used in PCs
>> but more importantly guests running on the Sam460ex board prefer this
>> card and have a driver for it (unlike for other SATA controllers
>> already emulated).
>>
>> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
>
> I don't know enough about IDE to give this any more than a quick check
> for anything obviously bogus looking.  So,
>
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
>
> John, can you take this through your tree, or should I take it through
> the ppc tree?

I think he said before it can go via ppc tree:

http://lists.nongnu.org/archive/html/qemu-devel/2017-08/msg04480.html

>> ---
>> v2: Addressed review comments:
>> - Replaced debug printf with trace
>> - Added comments about BAR mappings and reference to data sheet
>> - Maintained with the sam460ex PPC machine and not with rest of hw/ide
>>
>>  MAINTAINERS                        |   6 +
>>  default-configs/ppcemb-softmmu.mak |   1 +
>>  hw/ide/Makefile.objs               |   1 +
>>  hw/ide/sii3112.c                   | 368 +++++++++++++++++++++++++++++++++++++
>>  hw/ide/trace-events                |   5 +
>>  5 files changed, 381 insertions(+)
>>  create mode 100644 hw/ide/sii3112.c
>>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 45e2e20..2ec47db 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -761,6 +761,12 @@ L: qemu-ppc@nongnu.org
>>  S: Odd Fixes
>>  F: hw/ppc/virtex_ml507.c
>>
>> +sam460ex
>> +M: BALATON Zoltan <balaton@eik.bme.hu>
>> +L: qemu-ppc@nongnu.org
>> +S: Maintained
>> +F: hw/ide/sii3112.c
>> +
>>  SH4 Machines
>>  ------------
>>  R2D
>> diff --git a/default-configs/ppcemb-softmmu.mak b/default-configs/ppcemb-softmmu.mak
>> index 13917fb..5db4618 100644
>> --- a/default-configs/ppcemb-softmmu.mak
>> +++ b/default-configs/ppcemb-softmmu.mak
>> @@ -16,3 +16,4 @@ CONFIG_I8259=y
>>  CONFIG_XILINX=y
>>  CONFIG_XILINX_ETHLITE=y
>>  CONFIG_SM501=y
>> +CONFIG_IDE_SII3112=y
>> diff --git a/hw/ide/Makefile.objs b/hw/ide/Makefile.objs
>> index f0edca3..fc328ff 100644
>> --- a/hw/ide/Makefile.objs
>> +++ b/hw/ide/Makefile.objs
>> @@ -11,3 +11,4 @@ common-obj-$(CONFIG_MICRODRIVE) += microdrive.o
>>  common-obj-$(CONFIG_AHCI) += ahci.o
>>  common-obj-$(CONFIG_AHCI) += ich.o
>>  common-obj-$(CONFIG_ALLWINNER_A10) += ahci-allwinner.o
>> +common-obj-$(CONFIG_IDE_SII3112) += sii3112.o
>> diff --git a/hw/ide/sii3112.c b/hw/ide/sii3112.c
>> new file mode 100644
>> index 0000000..e2f5562
>> --- /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)
>> diff --git a/hw/ide/trace-events b/hw/ide/trace-events
>> index 601bd97..0c39cab 100644
>> --- a/hw/ide/trace-events
>> +++ b/hw/ide/trace-events
>> @@ -37,6 +37,11 @@ bmdma_addr_write(uint64_t data) "data: 0x%016"PRIx64
>>  bmdma_read(uint64_t addr, uint8_t val) "bmdma: readb 0x%"PRIx64" : 0x%02x"
>>  bmdma_write(uint64_t addr, uint64_t val) "bmdma: writeb 0x%"PRIx64" : 0x%02"PRIx64
>>
>> +# hw/ide/sii3112.c
>> +sii3112_read(int size, uint64_t addr, uint64_t val) "bmdma: read (size %d) 0x%"PRIx64" : 0x%02"PRIx64
>> +sii3112_write(int size, uint64_t addr, uint64_t val) "bmdma: write (size %d) 0x%"PRIx64" : 0x%02"PRIx64
>> +sii3112_set_irq(int channel, int level) "channel %d level %d"
>> +
>>  # hw/ide/via.c
>>  bmdma_read_via(uint64_t addr, uint32_t val) "bmdma: readb 0x%"PRIx64" : 0x%02x"
>>  bmdma_write_via(uint64_t addr, uint64_t val) "bmdma: writeb 0x%"PRIx64" : 0x%02"PRIx64
>> --
>> 2.7.6
>>
>
>
John Snow Dec. 18, 2017, 6:33 p.m. UTC | #3
On 12/18/2017 07:30 AM, BALATON Zoltan wrote:
> On Mon, 18 Dec 2017, David Gibson wrote:
>> On Sat, Dec 16, 2017 at 11:42:39PM +0100, BALATON Zoltan wrote:
>>> This is a common generic PCI SATA controller that is also used in PCs
>>> but more importantly guests running on the Sam460ex board prefer this
>>> card and have a driver for it (unlike for other SATA controllers
>>> already emulated).
>>>
>>> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
>>
>> I don't know enough about IDE to give this any more than a quick check
>> for anything obviously bogus looking.  So,
>>
>> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
>>
>> John, can you take this through your tree, or should I take it through
>> the ppc tree?
> 
> I think he said before it can go via ppc tree:
> 
> http://lists.nongnu.org/archive/html/qemu-devel/2017-08/msg04480.html
> 

Yep, I tend to use Acked-by to indicate that it's okay for you to stage.
I'll give it another look-over in a minute, but I'm fine with adding the
model in general, even if it's not quite complete just yet.

(More musings: we really ought to have a way to indicate to QEMU
programmatically which devices we think are supported, which are
experimental, and which are rudimentary.)

--js
BALATON Zoltan Dec. 19, 2017, 12:34 a.m. UTC | #4
On Mon, 18 Dec 2017, John Snow wrote:
> On 12/18/2017 07:30 AM, BALATON Zoltan wrote:
>> On Mon, 18 Dec 2017, David Gibson wrote:
>>> On Sat, Dec 16, 2017 at 11:42:39PM +0100, BALATON Zoltan wrote:
>>>> This is a common generic PCI SATA controller that is also used in PCs
>>>> but more importantly guests running on the Sam460ex board prefer this
>>>> card and have a driver for it (unlike for other SATA controllers
>>>> already emulated).
>>>>
>>>> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
>>>
>>> I don't know enough about IDE to give this any more than a quick check
>>> for anything obviously bogus looking.? So,
>>>
>>> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
>>>
>>> John, can you take this through your tree, or should I take it through
>>> the ppc tree?
>>
>> I think he said before it can go via ppc tree:
>>
>> http://lists.nongnu.org/archive/html/qemu-devel/2017-08/msg04480.html
>>
>
> Yep, I tend to use Acked-by to indicate that it's okay for you to stage.
> I'll give it another look-over in a minute, but I'm fine with adding the
> model in general, even if it's not quite complete just yet.

Maybe it's not complete yet but it should work to some degree. I've tested 
it with Linux on i386-softmmu and on PPC Sam460ex with u-boot and some 
guests (both on x86_64 host) and these could boot from an ide-cd model 
connected to this controller so at least basic PIO and UDMA modes should 
work. Maybe some more advanced features are missing but don't know if 
there are any drivers using those.

On i386 the bios does not have a driver so one cannot boot from this 
controller only, so I've tested it with -kernel and -initrd options but 
root filesystem was then read from CD connected to this controller and it 
could read it and start. I haven't tested it more than that though. Maybe 
the card's original option ROM that would allow booting from BIOS might 
not work with this device model but I think we could not distribute that 
anyway for legal reasons so I did not try that. On the Sam460ex which is 
my target for this the u-boot firmware has a driver and can boot from this 
controller as well as clients can use it.

As of now this patch only adds it to ppcemb and will only be created by 
default on the sam460ex machine so not very likely someone would try to 
use it on something else without recompiling QEMU.

Regards,
BALATON Zoltan
David Gibson Dec. 19, 2017, 1:18 a.m. UTC | #5
On Mon, Dec 18, 2017 at 01:33:07PM -0500, John Snow wrote:
> 
> 
> On 12/18/2017 07:30 AM, BALATON Zoltan wrote:
> > On Mon, 18 Dec 2017, David Gibson wrote:
> >> On Sat, Dec 16, 2017 at 11:42:39PM +0100, BALATON Zoltan wrote:
> >>> This is a common generic PCI SATA controller that is also used in PCs
> >>> but more importantly guests running on the Sam460ex board prefer this
> >>> card and have a driver for it (unlike for other SATA controllers
> >>> already emulated).
> >>>
> >>> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
> >>
> >> I don't know enough about IDE to give this any more than a quick check
> >> for anything obviously bogus looking.  So,
> >>
> >> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> >>
> >> John, can you take this through your tree, or should I take it through
> >> the ppc tree?
> > 
> > I think he said before it can go via ppc tree:
> > 
> > http://lists.nongnu.org/archive/html/qemu-devel/2017-08/msg04480.html
> > 
> 
> Yep, I tend to use Acked-by to indicate that it's okay for you to stage.
> I'll give it another look-over in a minute, but I'm fine with adding the
> model in general, even if it's not quite complete just yet.
> 
> (More musings: we really ought to have a way to indicate to QEMU
> programmatically which devices we think are supported, which are
> experimental, and which are rudimentary.)

Ok, I've taken it into my tree.
John Snow Dec. 20, 2017, 1:26 a.m. UTC | #6
On 12/18/2017 08:18 PM, David Gibson wrote:
> On Mon, Dec 18, 2017 at 01:33:07PM -0500, John Snow wrote:
>>
>>
>> On 12/18/2017 07:30 AM, BALATON Zoltan wrote:
>>> On Mon, 18 Dec 2017, David Gibson wrote:
>>>> On Sat, Dec 16, 2017 at 11:42:39PM +0100, BALATON Zoltan wrote:
>>>>> This is a common generic PCI SATA controller that is also used in PCs
>>>>> but more importantly guests running on the Sam460ex board prefer this
>>>>> card and have a driver for it (unlike for other SATA controllers
>>>>> already emulated).
>>>>>
>>>>> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
>>>>
>>>> I don't know enough about IDE to give this any more than a quick check
>>>> for anything obviously bogus looking.  So,
>>>>
>>>> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
>>>>
>>>> John, can you take this through your tree, or should I take it through
>>>> the ppc tree?
>>>
>>> I think he said before it can go via ppc tree:
>>>
>>> http://lists.nongnu.org/archive/html/qemu-devel/2017-08/msg04480.html
>>>
>>
>> Yep, I tend to use Acked-by to indicate that it's okay for you to stage.
>> I'll give it another look-over in a minute, but I'm fine with adding the
>> model in general, even if it's not quite complete just yet.
>>
>> (More musings: we really ought to have a way to indicate to QEMU
>> programmatically which devices we think are supported, which are
>> experimental, and which are rudimentary.)
> 
> Ok, I've taken it into my tree.
> 

Great, thanks :)
John Snow Dec. 21, 2017, 12:13 a.m. UTC | #7
On 12/16/2017 05:42 PM, BALATON Zoltan wrote:
> This is a common generic PCI SATA controller that is also used in PCs
> but more importantly guests running on the Sam460ex board prefer this
> card and have a driver for it (unlike for other SATA controllers
> already emulated).
> 
> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>

late, but, officially:

Acked-by: John Snow <jsnow@redhat.com>

> ---
> v2: Addressed review comments:
> - Replaced debug printf with trace
> - Added comments about BAR mappings and reference to data sheet
> - Maintained with the sam460ex PPC machine and not with rest of hw/ide
> 
>  MAINTAINERS                        |   6 +
>  default-configs/ppcemb-softmmu.mak |   1 +
>  hw/ide/Makefile.objs               |   1 +
>  hw/ide/sii3112.c                   | 368 +++++++++++++++++++++++++++++++++++++
>  hw/ide/trace-events                |   5 +
>  5 files changed, 381 insertions(+)
>  create mode 100644 hw/ide/sii3112.c
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 45e2e20..2ec47db 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -761,6 +761,12 @@ L: qemu-ppc@nongnu.org
>  S: Odd Fixes
>  F: hw/ppc/virtex_ml507.c
>  
> +sam460ex
> +M: BALATON Zoltan <balaton@eik.bme.hu>
> +L: qemu-ppc@nongnu.org
> +S: Maintained
> +F: hw/ide/sii3112.c
> +
>  SH4 Machines
>  ------------
>  R2D
> diff --git a/default-configs/ppcemb-softmmu.mak b/default-configs/ppcemb-softmmu.mak
> index 13917fb..5db4618 100644
> --- a/default-configs/ppcemb-softmmu.mak
> +++ b/default-configs/ppcemb-softmmu.mak
> @@ -16,3 +16,4 @@ CONFIG_I8259=y
>  CONFIG_XILINX=y
>  CONFIG_XILINX_ETHLITE=y
>  CONFIG_SM501=y
> +CONFIG_IDE_SII3112=y
> diff --git a/hw/ide/Makefile.objs b/hw/ide/Makefile.objs
> index f0edca3..fc328ff 100644
> --- a/hw/ide/Makefile.objs
> +++ b/hw/ide/Makefile.objs
> @@ -11,3 +11,4 @@ common-obj-$(CONFIG_MICRODRIVE) += microdrive.o
>  common-obj-$(CONFIG_AHCI) += ahci.o
>  common-obj-$(CONFIG_AHCI) += ich.o
>  common-obj-$(CONFIG_ALLWINNER_A10) += ahci-allwinner.o
> +common-obj-$(CONFIG_IDE_SII3112) += sii3112.o
> diff --git a/hw/ide/sii3112.c b/hw/ide/sii3112.c
> new file mode 100644
> index 0000000..e2f5562
> --- /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)
> diff --git a/hw/ide/trace-events b/hw/ide/trace-events
> index 601bd97..0c39cab 100644
> --- a/hw/ide/trace-events
> +++ b/hw/ide/trace-events
> @@ -37,6 +37,11 @@ bmdma_addr_write(uint64_t data) "data: 0x%016"PRIx64
>  bmdma_read(uint64_t addr, uint8_t val) "bmdma: readb 0x%"PRIx64" : 0x%02x"
>  bmdma_write(uint64_t addr, uint64_t val) "bmdma: writeb 0x%"PRIx64" : 0x%02"PRIx64
>  
> +# hw/ide/sii3112.c
> +sii3112_read(int size, uint64_t addr, uint64_t val) "bmdma: read (size %d) 0x%"PRIx64" : 0x%02"PRIx64
> +sii3112_write(int size, uint64_t addr, uint64_t val) "bmdma: write (size %d) 0x%"PRIx64" : 0x%02"PRIx64
> +sii3112_set_irq(int channel, int level) "channel %d level %d"
> +
>  # hw/ide/via.c
>  bmdma_read_via(uint64_t addr, uint32_t val) "bmdma: readb 0x%"PRIx64" : 0x%02x"
>  bmdma_write_via(uint64_t addr, uint64_t val) "bmdma: writeb 0x%"PRIx64" : 0x%02"PRIx64
>
diff mbox series

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index 45e2e20..2ec47db 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -761,6 +761,12 @@  L: qemu-ppc@nongnu.org
 S: Odd Fixes
 F: hw/ppc/virtex_ml507.c
 
+sam460ex
+M: BALATON Zoltan <balaton@eik.bme.hu>
+L: qemu-ppc@nongnu.org
+S: Maintained
+F: hw/ide/sii3112.c
+
 SH4 Machines
 ------------
 R2D
diff --git a/default-configs/ppcemb-softmmu.mak b/default-configs/ppcemb-softmmu.mak
index 13917fb..5db4618 100644
--- a/default-configs/ppcemb-softmmu.mak
+++ b/default-configs/ppcemb-softmmu.mak
@@ -16,3 +16,4 @@  CONFIG_I8259=y
 CONFIG_XILINX=y
 CONFIG_XILINX_ETHLITE=y
 CONFIG_SM501=y
+CONFIG_IDE_SII3112=y
diff --git a/hw/ide/Makefile.objs b/hw/ide/Makefile.objs
index f0edca3..fc328ff 100644
--- a/hw/ide/Makefile.objs
+++ b/hw/ide/Makefile.objs
@@ -11,3 +11,4 @@  common-obj-$(CONFIG_MICRODRIVE) += microdrive.o
 common-obj-$(CONFIG_AHCI) += ahci.o
 common-obj-$(CONFIG_AHCI) += ich.o
 common-obj-$(CONFIG_ALLWINNER_A10) += ahci-allwinner.o
+common-obj-$(CONFIG_IDE_SII3112) += sii3112.o
diff --git a/hw/ide/sii3112.c b/hw/ide/sii3112.c
new file mode 100644
index 0000000..e2f5562
--- /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)
diff --git a/hw/ide/trace-events b/hw/ide/trace-events
index 601bd97..0c39cab 100644
--- a/hw/ide/trace-events
+++ b/hw/ide/trace-events
@@ -37,6 +37,11 @@  bmdma_addr_write(uint64_t data) "data: 0x%016"PRIx64
 bmdma_read(uint64_t addr, uint8_t val) "bmdma: readb 0x%"PRIx64" : 0x%02x"
 bmdma_write(uint64_t addr, uint64_t val) "bmdma: writeb 0x%"PRIx64" : 0x%02"PRIx64
 
+# hw/ide/sii3112.c
+sii3112_read(int size, uint64_t addr, uint64_t val) "bmdma: read (size %d) 0x%"PRIx64" : 0x%02"PRIx64
+sii3112_write(int size, uint64_t addr, uint64_t val) "bmdma: write (size %d) 0x%"PRIx64" : 0x%02"PRIx64
+sii3112_set_irq(int channel, int level) "channel %d level %d"
+
 # hw/ide/via.c
 bmdma_read_via(uint64_t addr, uint32_t val) "bmdma: readb 0x%"PRIx64" : 0x%02x"
 bmdma_write_via(uint64_t addr, uint64_t val) "bmdma: writeb 0x%"PRIx64" : 0x%02"PRIx64