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 <hw/hw.h> 27 #include <hw/i386/pc.h> 28 #include <hw/pci/pci.h> 29 #include <hw/isa/isa.h> 30 #include "sysemu/block-backend.h" 31 #include "sysemu/sysemu.h" 32 #include "sysemu/dma.h" 33 34 #include <hw/ide/pci.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 #ifdef DEBUG_IDE 58 printf("bmdma: readb 0x%02x : 0x%02x\n", addr, val); 59 #endif 60 return val; 61 } 62 63 static void bmdma_write(void *opaque, hwaddr addr, 64 uint64_t val, unsigned size) 65 { 66 BMDMAState *bm = opaque; 67 68 if (size != 1) { 69 return; 70 } 71 72 #ifdef DEBUG_IDE 73 printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val); 74 #endif 75 switch (addr & 3) { 76 case 0: 77 bmdma_cmd_writeb(bm, val); 78 break; 79 case 2: 80 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06); 81 break; 82 default:; 83 } 84 } 85 86 static const MemoryRegionOps via_bmdma_ops = { 87 .read = bmdma_read, 88 .write = bmdma_write, 89 }; 90 91 static void bmdma_setup_bar(PCIIDEState *d) 92 { 93 int i; 94 95 memory_region_init(&d->bmdma_bar, OBJECT(d), "via-bmdma-container", 16); 96 for(i = 0;i < 2; i++) { 97 BMDMAState *bm = &d->bmdma[i]; 98 99 memory_region_init_io(&bm->extra_io, OBJECT(d), &via_bmdma_ops, bm, 100 "via-bmdma", 4); 101 memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io); 102 memory_region_init_io(&bm->addr_ioport, OBJECT(d), 103 &bmdma_addr_ioport_ops, bm, "bmdma", 4); 104 memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport); 105 } 106 } 107 108 static void via_reset(void *opaque) 109 { 110 PCIIDEState *d = opaque; 111 PCIDevice *pd = PCI_DEVICE(d); 112 uint8_t *pci_conf = pd->config; 113 int i; 114 115 for (i = 0; i < 2; i++) { 116 ide_bus_reset(&d->bus[i]); 117 } 118 119 pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_WAIT); 120 pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_FAST_BACK | 121 PCI_STATUS_DEVSEL_MEDIUM); 122 123 pci_set_long(pci_conf + PCI_BASE_ADDRESS_0, 0x000001f0); 124 pci_set_long(pci_conf + PCI_BASE_ADDRESS_1, 0x000003f4); 125 pci_set_long(pci_conf + PCI_BASE_ADDRESS_2, 0x00000170); 126 pci_set_long(pci_conf + PCI_BASE_ADDRESS_3, 0x00000374); 127 pci_set_long(pci_conf + PCI_BASE_ADDRESS_4, 0x0000cc01); /* BMIBA: 20-23h */ 128 pci_set_long(pci_conf + PCI_INTERRUPT_LINE, 0x0000010e); 129 130 /* IDE chip enable, IDE configuration 1/2, IDE FIFO Configuration*/ 131 pci_set_long(pci_conf + 0x40, 0x0a090600); 132 /* IDE misc configuration 1/2/3 */ 133 pci_set_long(pci_conf + 0x44, 0x00c00068); 134 /* IDE Timing control */ 135 pci_set_long(pci_conf + 0x48, 0xa8a8a8a8); 136 /* IDE Address Setup Time */ 137 pci_set_long(pci_conf + 0x4c, 0x000000ff); 138 /* UltraDMA Extended Timing Control*/ 139 pci_set_long(pci_conf + 0x50, 0x07070707); 140 /* UltraDMA FIFO Control */ 141 pci_set_long(pci_conf + 0x54, 0x00000004); 142 /* IDE primary sector size */ 143 pci_set_long(pci_conf + 0x60, 0x00000200); 144 /* IDE secondary sector size */ 145 pci_set_long(pci_conf + 0x68, 0x00000200); 146 /* PCI PM Block */ 147 pci_set_long(pci_conf + 0xc0, 0x00020001); 148 } 149 150 static void vt82c686b_init_ports(PCIIDEState *d) { 151 static const struct { 152 int iobase; 153 int iobase2; 154 int isairq; 155 } port_info[] = { 156 {0x1f0, 0x3f6, 14}, 157 {0x170, 0x376, 15}, 158 }; 159 int i; 160 161 for (i = 0; i < 2; i++) { 162 ide_bus_new(&d->bus[i], sizeof(d->bus[i]), DEVICE(d), i, 2); 163 ide_init_ioport(&d->bus[i], NULL, port_info[i].iobase, 164 port_info[i].iobase2); 165 ide_init2(&d->bus[i], isa_get_irq(NULL, port_info[i].isairq)); 166 167 bmdma_init(&d->bus[i], &d->bmdma[i], d); 168 d->bmdma[i].bus = &d->bus[i]; 169 ide_register_restart_cb(&d->bus[i]); 170 } 171 } 172 173 /* via ide func */ 174 static void vt82c686b_ide_realize(PCIDevice *dev, Error **errp) 175 { 176 PCIIDEState *d = PCI_IDE(dev); 177 uint8_t *pci_conf = dev->config; 178 179 pci_config_set_prog_interface(pci_conf, 0x8a); /* legacy ATA mode */ 180 pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0); 181 182 qemu_register_reset(via_reset, d); 183 bmdma_setup_bar(d); 184 pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar); 185 186 vmstate_register(DEVICE(dev), 0, &vmstate_ide_pci, d); 187 188 vt82c686b_init_ports(d); 189 } 190 191 static void vt82c686b_ide_exitfn(PCIDevice *dev) 192 { 193 PCIIDEState *d = PCI_IDE(dev); 194 unsigned i; 195 196 for (i = 0; i < 2; ++i) { 197 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io); 198 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport); 199 } 200 } 201 202 void vt82c686b_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn) 203 { 204 PCIDevice *dev; 205 206 dev = pci_create_simple(bus, devfn, "via-ide"); 207 pci_ide_create_devs(dev, hd_table); 208 } 209 210 static void via_ide_class_init(ObjectClass *klass, void *data) 211 { 212 DeviceClass *dc = DEVICE_CLASS(klass); 213 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 214 215 k->realize = vt82c686b_ide_realize; 216 k->exit = vt82c686b_ide_exitfn; 217 k->vendor_id = PCI_VENDOR_ID_VIA; 218 k->device_id = PCI_DEVICE_ID_VIA_IDE; 219 k->revision = 0x06; 220 k->class_id = PCI_CLASS_STORAGE_IDE; 221 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 222 } 223 224 static const TypeInfo via_ide_info = { 225 .name = "via-ide", 226 .parent = TYPE_PCI_IDE, 227 .class_init = via_ide_class_init, 228 }; 229 230 static void via_ide_register_types(void) 231 { 232 type_register_static(&via_ide_info); 233 } 234 235 type_init(via_ide_register_types) 236