1 /* 2 * QEMU IDE Emulation: PCI VIA82C686B support. 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * Copyright (c) 2006 Openedhand Ltd. 6 * Copyright (c) 2010 Huacai Chen <zltjiangshi@gmail.com> 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 */ 26 #include "qemu/osdep.h" 27 #include "hw/hw.h" 28 #include "hw/pci/pci.h" 29 #include "hw/isa/isa.h" 30 #include "sysemu/sysemu.h" 31 #include "sysemu/dma.h" 32 33 #include "hw/ide/pci.h" 34 #include "trace.h" 35 36 static uint64_t bmdma_read(void *opaque, hwaddr addr, 37 unsigned size) 38 { 39 BMDMAState *bm = opaque; 40 uint32_t val; 41 42 if (size != 1) { 43 return ((uint64_t)1 << (size * 8)) - 1; 44 } 45 46 switch (addr & 3) { 47 case 0: 48 val = bm->cmd; 49 break; 50 case 2: 51 val = bm->status; 52 break; 53 default: 54 val = 0xff; 55 break; 56 } 57 58 trace_bmdma_read_via(addr, val); 59 return val; 60 } 61 62 static void bmdma_write(void *opaque, hwaddr addr, 63 uint64_t val, unsigned size) 64 { 65 BMDMAState *bm = opaque; 66 67 if (size != 1) { 68 return; 69 } 70 71 trace_bmdma_write_via(addr, val); 72 switch (addr & 3) { 73 case 0: 74 bmdma_cmd_writeb(bm, val); 75 break; 76 case 2: 77 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06); 78 break; 79 default:; 80 } 81 } 82 83 static const MemoryRegionOps via_bmdma_ops = { 84 .read = bmdma_read, 85 .write = bmdma_write, 86 }; 87 88 static void bmdma_setup_bar(PCIIDEState *d) 89 { 90 int i; 91 92 memory_region_init(&d->bmdma_bar, OBJECT(d), "via-bmdma-container", 16); 93 for(i = 0;i < 2; i++) { 94 BMDMAState *bm = &d->bmdma[i]; 95 96 memory_region_init_io(&bm->extra_io, OBJECT(d), &via_bmdma_ops, bm, 97 "via-bmdma", 4); 98 memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io); 99 memory_region_init_io(&bm->addr_ioport, OBJECT(d), 100 &bmdma_addr_ioport_ops, bm, "bmdma", 4); 101 memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport); 102 } 103 } 104 105 static void via_reset(void *opaque) 106 { 107 PCIIDEState *d = opaque; 108 PCIDevice *pd = PCI_DEVICE(d); 109 uint8_t *pci_conf = pd->config; 110 int i; 111 112 for (i = 0; i < 2; i++) { 113 ide_bus_reset(&d->bus[i]); 114 } 115 116 pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_WAIT); 117 pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_FAST_BACK | 118 PCI_STATUS_DEVSEL_MEDIUM); 119 120 pci_set_long(pci_conf + PCI_BASE_ADDRESS_0, 0x000001f0); 121 pci_set_long(pci_conf + PCI_BASE_ADDRESS_1, 0x000003f4); 122 pci_set_long(pci_conf + PCI_BASE_ADDRESS_2, 0x00000170); 123 pci_set_long(pci_conf + PCI_BASE_ADDRESS_3, 0x00000374); 124 pci_set_long(pci_conf + PCI_BASE_ADDRESS_4, 0x0000cc01); /* BMIBA: 20-23h */ 125 pci_set_long(pci_conf + PCI_INTERRUPT_LINE, 0x0000010e); 126 127 /* IDE chip enable, IDE configuration 1/2, IDE FIFO Configuration*/ 128 pci_set_long(pci_conf + 0x40, 0x0a090600); 129 /* IDE misc configuration 1/2/3 */ 130 pci_set_long(pci_conf + 0x44, 0x00c00068); 131 /* IDE Timing control */ 132 pci_set_long(pci_conf + 0x48, 0xa8a8a8a8); 133 /* IDE Address Setup Time */ 134 pci_set_long(pci_conf + 0x4c, 0x000000ff); 135 /* UltraDMA Extended Timing Control*/ 136 pci_set_long(pci_conf + 0x50, 0x07070707); 137 /* UltraDMA FIFO Control */ 138 pci_set_long(pci_conf + 0x54, 0x00000004); 139 /* IDE primary sector size */ 140 pci_set_long(pci_conf + 0x60, 0x00000200); 141 /* IDE secondary sector size */ 142 pci_set_long(pci_conf + 0x68, 0x00000200); 143 /* PCI PM Block */ 144 pci_set_long(pci_conf + 0xc0, 0x00020001); 145 } 146 147 static void vt82c686b_init_ports(PCIIDEState *d) { 148 static const struct { 149 int iobase; 150 int iobase2; 151 int isairq; 152 } port_info[] = { 153 {0x1f0, 0x3f6, 14}, 154 {0x170, 0x376, 15}, 155 }; 156 int i; 157 158 for (i = 0; i < 2; i++) { 159 ide_bus_new(&d->bus[i], sizeof(d->bus[i]), DEVICE(d), i, 2); 160 ide_init_ioport(&d->bus[i], NULL, port_info[i].iobase, 161 port_info[i].iobase2); 162 ide_init2(&d->bus[i], isa_get_irq(NULL, port_info[i].isairq)); 163 164 bmdma_init(&d->bus[i], &d->bmdma[i], d); 165 d->bmdma[i].bus = &d->bus[i]; 166 ide_register_restart_cb(&d->bus[i]); 167 } 168 } 169 170 /* via ide func */ 171 static void vt82c686b_ide_realize(PCIDevice *dev, Error **errp) 172 { 173 PCIIDEState *d = PCI_IDE(dev); 174 uint8_t *pci_conf = dev->config; 175 176 pci_config_set_prog_interface(pci_conf, 0x8a); /* legacy ATA mode */ 177 pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0); 178 179 qemu_register_reset(via_reset, d); 180 bmdma_setup_bar(d); 181 pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar); 182 183 vmstate_register(DEVICE(dev), 0, &vmstate_ide_pci, d); 184 185 vt82c686b_init_ports(d); 186 } 187 188 static void vt82c686b_ide_exitfn(PCIDevice *dev) 189 { 190 PCIIDEState *d = PCI_IDE(dev); 191 unsigned i; 192 193 for (i = 0; i < 2; ++i) { 194 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io); 195 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport); 196 } 197 } 198 199 void vt82c686b_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn) 200 { 201 PCIDevice *dev; 202 203 dev = pci_create_simple(bus, devfn, "via-ide"); 204 pci_ide_create_devs(dev, hd_table); 205 } 206 207 static void via_ide_class_init(ObjectClass *klass, void *data) 208 { 209 DeviceClass *dc = DEVICE_CLASS(klass); 210 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 211 212 k->realize = vt82c686b_ide_realize; 213 k->exit = vt82c686b_ide_exitfn; 214 k->vendor_id = PCI_VENDOR_ID_VIA; 215 k->device_id = PCI_DEVICE_ID_VIA_IDE; 216 k->revision = 0x06; 217 k->class_id = PCI_CLASS_STORAGE_IDE; 218 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 219 } 220 221 static const TypeInfo via_ide_info = { 222 .name = "via-ide", 223 .parent = TYPE_PCI_IDE, 224 .class_init = via_ide_class_init, 225 }; 226 227 static void via_ide_register_types(void) 228 { 229 type_register_static(&via_ide_info); 230 } 231 232 type_init(via_ide_register_types) 233