1 /* 2 * QEMU SiI3112A PCI to Serial ATA Controller Emulation 3 * 4 * Copyright (C) 2017 BALATON Zoltan <balaton@eik.bme.hu> 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 * 9 */ 10 11 /* For documentation on this and similar cards see: 12 * http://wiki.osdev.org/User:Quok/Silicon_Image_Datasheets 13 */ 14 15 #include "qemu/osdep.h" 16 #include "hw/ide/pci.h" 17 #include "qemu/module.h" 18 #include "trace.h" 19 #include "qom/object.h" 20 #include "ide-internal.h" 21 22 #define TYPE_SII3112_PCI "sii3112" 23 OBJECT_DECLARE_SIMPLE_TYPE(SiI3112PCIState, SII3112_PCI) 24 25 typedef struct SiI3112Regs { 26 uint32_t confstat; 27 uint32_t scontrol; 28 uint16_t sien; 29 uint8_t swdata; 30 } SiI3112Regs; 31 32 struct SiI3112PCIState { 33 PCIIDEState i; 34 MemoryRegion mmio; 35 SiI3112Regs regs[2]; 36 }; 37 38 /* The sii3112_reg_read and sii3112_reg_write functions implement the 39 * Internal Register Space - BAR5 (section 6.7 of the data sheet). 40 */ 41 42 static uint64_t sii3112_reg_read(void *opaque, hwaddr addr, 43 unsigned int size) 44 { 45 SiI3112PCIState *d = opaque; 46 uint64_t val; 47 48 switch (addr) { 49 case 0x00: 50 val = d->i.bmdma[0].cmd; 51 break; 52 case 0x01: 53 val = d->regs[0].swdata; 54 break; 55 case 0x02: 56 val = d->i.bmdma[0].status; 57 break; 58 case 0x03: 59 val = 0; 60 break; 61 case 0x04 ... 0x07: 62 val = bmdma_addr_ioport_ops.read(&d->i.bmdma[0], addr - 4, size); 63 break; 64 case 0x08: 65 val = d->i.bmdma[1].cmd; 66 break; 67 case 0x09: 68 val = d->regs[1].swdata; 69 break; 70 case 0x0a: 71 val = d->i.bmdma[1].status; 72 break; 73 case 0x0b: 74 val = 0; 75 break; 76 case 0x0c ... 0x0f: 77 val = bmdma_addr_ioport_ops.read(&d->i.bmdma[1], addr - 12, size); 78 break; 79 case 0x10: 80 val = d->i.bmdma[0].cmd; 81 val |= (d->regs[0].confstat & (1UL << 11) ? (1 << 4) : 0); /*SATAINT0*/ 82 val |= (d->regs[1].confstat & (1UL << 11) ? (1 << 6) : 0); /*SATAINT1*/ 83 val |= (d->i.bmdma[1].status & BM_STATUS_INT ? (1 << 14) : 0); 84 val |= (uint32_t)d->i.bmdma[0].status << 16; 85 val |= (uint32_t)d->i.bmdma[1].status << 24; 86 break; 87 case 0x18: 88 val = d->i.bmdma[1].cmd; 89 val |= (d->regs[1].confstat & (1UL << 11) ? (1 << 4) : 0); 90 val |= (uint32_t)d->i.bmdma[1].status << 16; 91 break; 92 case 0x80 ... 0x87: 93 val = pci_ide_data_le_ops.read(&d->i.bus[0], addr - 0x80, size); 94 break; 95 case 0x8a: 96 val = pci_ide_cmd_le_ops.read(&d->i.bus[0], 2, size); 97 break; 98 case 0xa0: 99 val = d->regs[0].confstat; 100 break; 101 case 0xc0 ... 0xc7: 102 val = pci_ide_data_le_ops.read(&d->i.bus[1], addr - 0xc0, size); 103 break; 104 case 0xca: 105 val = pci_ide_cmd_le_ops.read(&d->i.bus[1], 2, size); 106 break; 107 case 0xe0: 108 val = d->regs[1].confstat; 109 break; 110 case 0x100: 111 val = d->regs[0].scontrol; 112 break; 113 case 0x104: 114 val = (d->i.bus[0].ifs[0].blk) ? 0x113 : 0; 115 break; 116 case 0x148: 117 val = (uint32_t)d->regs[0].sien << 16; 118 break; 119 case 0x180: 120 val = d->regs[1].scontrol; 121 break; 122 case 0x184: 123 val = (d->i.bus[1].ifs[0].blk) ? 0x113 : 0; 124 break; 125 case 0x1c8: 126 val = (uint32_t)d->regs[1].sien << 16; 127 break; 128 default: 129 val = 0; 130 break; 131 } 132 trace_sii3112_read(size, addr, val); 133 return val; 134 } 135 136 static void sii3112_reg_write(void *opaque, hwaddr addr, 137 uint64_t val, unsigned int size) 138 { 139 SiI3112PCIState *d = opaque; 140 141 trace_sii3112_write(size, addr, val); 142 switch (addr) { 143 case 0x00: 144 case 0x10: 145 bmdma_cmd_writeb(&d->i.bmdma[0], val); 146 break; 147 case 0x01: 148 case 0x11: 149 d->regs[0].swdata = val & 0x3f; 150 break; 151 case 0x02: 152 case 0x12: 153 bmdma_status_writeb(&d->i.bmdma[0], val); 154 break; 155 case 0x04 ... 0x07: 156 bmdma_addr_ioport_ops.write(&d->i.bmdma[0], addr - 4, val, size); 157 break; 158 case 0x08: 159 case 0x18: 160 bmdma_cmd_writeb(&d->i.bmdma[1], val); 161 break; 162 case 0x09: 163 case 0x19: 164 d->regs[1].swdata = val & 0x3f; 165 break; 166 case 0x0a: 167 case 0x1a: 168 bmdma_status_writeb(&d->i.bmdma[1], val); 169 break; 170 case 0x0c ... 0x0f: 171 bmdma_addr_ioport_ops.write(&d->i.bmdma[1], addr - 12, val, size); 172 break; 173 case 0x80 ... 0x87: 174 pci_ide_data_le_ops.write(&d->i.bus[0], addr - 0x80, val, size); 175 break; 176 case 0x8a: 177 pci_ide_cmd_le_ops.write(&d->i.bus[0], 2, val, size); 178 break; 179 case 0xc0 ... 0xc7: 180 pci_ide_data_le_ops.write(&d->i.bus[1], addr - 0xc0, val, size); 181 break; 182 case 0xca: 183 pci_ide_cmd_le_ops.write(&d->i.bus[1], 2, val, size); 184 break; 185 case 0x100: 186 d->regs[0].scontrol = val & 0xfff; 187 if (val & 1) { 188 ide_bus_reset(&d->i.bus[0]); 189 } 190 break; 191 case 0x148: 192 d->regs[0].sien = (val >> 16) & 0x3eed; 193 break; 194 case 0x180: 195 d->regs[1].scontrol = val & 0xfff; 196 if (val & 1) { 197 ide_bus_reset(&d->i.bus[1]); 198 } 199 break; 200 case 0x1c8: 201 d->regs[1].sien = (val >> 16) & 0x3eed; 202 break; 203 default: 204 break; 205 } 206 } 207 208 static const MemoryRegionOps sii3112_reg_ops = { 209 .read = sii3112_reg_read, 210 .write = sii3112_reg_write, 211 .endianness = DEVICE_LITTLE_ENDIAN, 212 }; 213 214 /* the PCI irq level is the logical OR of the two channels */ 215 static void sii3112_update_irq(SiI3112PCIState *s) 216 { 217 int i, set = 0; 218 219 for (i = 0; i < 2; i++) { 220 set |= s->regs[i].confstat & (1UL << 11); 221 } 222 pci_set_irq(PCI_DEVICE(s), (set ? 1 : 0)); 223 } 224 225 static void sii3112_set_irq(void *opaque, int channel, int level) 226 { 227 SiI3112PCIState *s = opaque; 228 229 trace_sii3112_set_irq(channel, level); 230 if (level) { 231 s->regs[channel].confstat |= (1UL << 11); 232 } else { 233 s->regs[channel].confstat &= ~(1UL << 11); 234 } 235 236 sii3112_update_irq(s); 237 } 238 239 static void sii3112_reset(DeviceState *dev) 240 { 241 SiI3112PCIState *s = SII3112_PCI(dev); 242 int i; 243 244 for (i = 0; i < 2; i++) { 245 s->regs[i].confstat = 0x6515 << 16; 246 ide_bus_reset(&s->i.bus[i]); 247 } 248 } 249 250 static void sii3112_pci_realize(PCIDevice *dev, Error **errp) 251 { 252 SiI3112PCIState *d = SII3112_PCI(dev); 253 PCIIDEState *s = PCI_IDE(dev); 254 DeviceState *ds = DEVICE(dev); 255 MemoryRegion *mr; 256 int i; 257 258 pci_config_set_interrupt_pin(dev->config, 1); 259 pci_set_byte(dev->config + PCI_CACHE_LINE_SIZE, 8); 260 261 /* BAR5 is in PCI memory space */ 262 memory_region_init_io(&d->mmio, OBJECT(d), &sii3112_reg_ops, d, 263 "sii3112.bar5", 0x200); 264 pci_register_bar(dev, 5, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio); 265 266 /* BAR0-BAR4 are PCI I/O space aliases into BAR5 */ 267 mr = g_new(MemoryRegion, 1); 268 memory_region_init_alias(mr, OBJECT(d), "sii3112.bar0", &d->mmio, 0x80, 8); 269 pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, mr); 270 mr = g_new(MemoryRegion, 1); 271 memory_region_init_alias(mr, OBJECT(d), "sii3112.bar1", &d->mmio, 0x88, 4); 272 pci_register_bar(dev, 1, PCI_BASE_ADDRESS_SPACE_IO, mr); 273 mr = g_new(MemoryRegion, 1); 274 memory_region_init_alias(mr, OBJECT(d), "sii3112.bar2", &d->mmio, 0xc0, 8); 275 pci_register_bar(dev, 2, PCI_BASE_ADDRESS_SPACE_IO, mr); 276 mr = g_new(MemoryRegion, 1); 277 memory_region_init_alias(mr, OBJECT(d), "sii3112.bar3", &d->mmio, 0xc8, 4); 278 pci_register_bar(dev, 3, PCI_BASE_ADDRESS_SPACE_IO, mr); 279 mr = g_new(MemoryRegion, 1); 280 memory_region_init_alias(mr, OBJECT(d), "sii3112.bar4", &d->mmio, 0, 16); 281 pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, mr); 282 283 qdev_init_gpio_in(ds, sii3112_set_irq, 2); 284 for (i = 0; i < 2; i++) { 285 ide_bus_init(&s->bus[i], sizeof(s->bus[i]), ds, i, 1); 286 ide_bus_init_output_irq(&s->bus[i], qdev_get_gpio_in(ds, i)); 287 288 bmdma_init(&s->bus[i], &s->bmdma[i], s); 289 ide_bus_register_restart_cb(&s->bus[i]); 290 } 291 } 292 293 static void sii3112_pci_class_init(ObjectClass *klass, void *data) 294 { 295 DeviceClass *dc = DEVICE_CLASS(klass); 296 PCIDeviceClass *pd = PCI_DEVICE_CLASS(klass); 297 298 pd->vendor_id = 0x1095; 299 pd->device_id = 0x3112; 300 pd->class_id = PCI_CLASS_STORAGE_RAID; 301 pd->revision = 1; 302 pd->realize = sii3112_pci_realize; 303 device_class_set_legacy_reset(dc, sii3112_reset); 304 dc->desc = "SiI3112A SATA controller"; 305 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 306 } 307 308 static const TypeInfo sii3112_pci_info = { 309 .name = TYPE_SII3112_PCI, 310 .parent = TYPE_PCI_IDE, 311 .instance_size = sizeof(SiI3112PCIState), 312 .class_init = sii3112_pci_class_init, 313 }; 314 315 static void sii3112_register_types(void) 316 { 317 type_register_static(&sii3112_pci_info); 318 } 319 320 type_init(sii3112_register_types) 321