/* * QEMU Allwinner AHCI Emulation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include "qemu/osdep.h" #include "hw/hw.h" #include "qemu/error-report.h" #include "sysemu/dma.h" #include "hw/ide/internal.h" #include "ahci_internal.h" #include "trace.h" #define ALLWINNER_AHCI(obj) \ OBJECT_CHECK(AllwinnerAHCIState, (obj), TYPE_ALLWINNER_AHCI) #define ALLWINNER_AHCI_BISTAFR ((0xa0 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_BISTCR ((0xa4 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_BISTFCTR ((0xa8 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_BISTSR ((0xac - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_BISTDECR ((0xb0 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_DIAGNR0 ((0xb4 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_DIAGNR1 ((0xb8 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_OOBR ((0xbc - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_PHYCS0R ((0xc0 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_PHYCS1R ((0xc4 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_PHYCS2R ((0xc8 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_TIMER1MS ((0xe0 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_GPARAM1R ((0xe8 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_GPARAM2R ((0xec - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_PPARAMR ((0xf0 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_TESTR ((0xf4 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_VERSIONR ((0xf8 - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_IDR ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4) #define ALLWINNER_AHCI_RWCR ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4) static uint64_t allwinner_ahci_mem_read(void *opaque, hwaddr addr, unsigned size) { AllwinnerAHCIState *a = opaque; AHCIState *s = &(SYSBUS_AHCI(a)->ahci); uint64_t val = a->regs[addr / 4]; switch (addr / 4) { case ALLWINNER_AHCI_PHYCS0R: val |= 0x2 << 28; break; case ALLWINNER_AHCI_PHYCS2R: val &= ~(0x1 << 24); break; } trace_allwinner_ahci_mem_read(s, a, addr, val, size); return val; } static void allwinner_ahci_mem_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { AllwinnerAHCIState *a = opaque; AHCIState *s = &(SYSBUS_AHCI(a)->ahci); trace_allwinner_ahci_mem_write(s, a, addr, val, size); a->regs[addr / 4] = val; } static const MemoryRegionOps allwinner_ahci_mem_ops = { .read = allwinner_ahci_mem_read, .write = allwinner_ahci_mem_write, .valid.min_access_size = 4, .valid.max_access_size = 4, .endianness = DEVICE_LITTLE_ENDIAN, }; static void allwinner_ahci_init(Object *obj) { SysbusAHCIState *s = SYSBUS_AHCI(obj); AllwinnerAHCIState *a = ALLWINNER_AHCI(obj); memory_region_init_io(&a->mmio, OBJECT(obj), &allwinner_ahci_mem_ops, a, "allwinner-ahci", ALLWINNER_AHCI_MMIO_SIZE); memory_region_add_subregion(&s->ahci.mem, ALLWINNER_AHCI_MMIO_OFF, &a->mmio); } static const VMStateDescription vmstate_allwinner_ahci = { .name = "allwinner-ahci", .version_id = 1, .minimum_version_id = 1, .fields = (VMStateField[]) { VMSTATE_UINT32_ARRAY(regs, AllwinnerAHCIState, ALLWINNER_AHCI_MMIO_SIZE / 4), VMSTATE_END_OF_LIST() } }; static void allwinner_ahci_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); dc->vmsd = &vmstate_allwinner_ahci; } static const TypeInfo allwinner_ahci_info = { .name = TYPE_ALLWINNER_AHCI, .parent = TYPE_SYSBUS_AHCI, .instance_size = sizeof(AllwinnerAHCIState), .instance_init = allwinner_ahci_init, .class_init = allwinner_ahci_class_init, }; static void sysbus_ahci_register_types(void) { type_register_static(&allwinner_ahci_info); } type_init(sysbus_ahci_register_types)