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4c3df0ec JQ |
1 | /* |
2 | * QEMU IDE Emulation: PCI PIIX3/4 support. | |
3 | * | |
4 | * Copyright (c) 2003 Fabrice Bellard | |
5 | * Copyright (c) 2006 Openedhand Ltd. | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
23 | * THE SOFTWARE. | |
24 | */ | |
25 | #include <hw/hw.h> | |
26 | #include <hw/pc.h> | |
27 | #include <hw/pci.h> | |
28 | #include <hw/isa.h> | |
29 | #include "block.h" | |
30 | #include "block_int.h" | |
31 | #include "sysemu.h" | |
32 | #include "dma.h" | |
33 | ||
34 | #include <hw/ide/pci.h> | |
35 | ||
36 | static uint32_t bmdma_readb(void *opaque, uint32_t addr) | |
37 | { | |
38 | BMDMAState *bm = opaque; | |
39 | uint32_t val; | |
40 | ||
41 | switch(addr & 3) { | |
42 | case 0: | |
43 | val = bm->cmd; | |
44 | break; | |
45 | case 2: | |
46 | val = bm->status; | |
47 | break; | |
48 | default: | |
49 | val = 0xff; | |
50 | break; | |
51 | } | |
52 | #ifdef DEBUG_IDE | |
53 | printf("bmdma: readb 0x%02x : 0x%02x\n", addr, val); | |
54 | #endif | |
55 | return val; | |
56 | } | |
57 | ||
58 | static void bmdma_writeb(void *opaque, uint32_t addr, uint32_t val) | |
59 | { | |
60 | BMDMAState *bm = opaque; | |
61 | #ifdef DEBUG_IDE | |
62 | printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val); | |
63 | #endif | |
64 | switch(addr & 3) { | |
65 | case 2: | |
66 | bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06); | |
67 | break; | |
68 | } | |
69 | } | |
70 | ||
71 | static void bmdma_map(PCIDevice *pci_dev, int region_num, | |
72 | uint32_t addr, uint32_t size, int type) | |
73 | { | |
74 | PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, pci_dev); | |
75 | int i; | |
76 | ||
77 | for(i = 0;i < 2; i++) { | |
78 | BMDMAState *bm = &d->bmdma[i]; | |
79 | d->bus[i].bmdma = bm; | |
80 | bm->pci_dev = DO_UPCAST(PCIIDEState, dev, pci_dev); | |
81 | bm->bus = d->bus+i; | |
82 | qemu_add_vm_change_state_handler(ide_dma_restart_cb, bm); | |
83 | ||
84 | register_ioport_write(addr, 1, 1, bmdma_cmd_writeb, bm); | |
85 | ||
86 | register_ioport_write(addr + 1, 3, 1, bmdma_writeb, bm); | |
87 | register_ioport_read(addr, 4, 1, bmdma_readb, bm); | |
88 | ||
89 | register_ioport_write(addr + 4, 4, 1, bmdma_addr_writeb, bm); | |
90 | register_ioport_read(addr + 4, 4, 1, bmdma_addr_readb, bm); | |
91 | register_ioport_write(addr + 4, 4, 2, bmdma_addr_writew, bm); | |
92 | register_ioport_read(addr + 4, 4, 2, bmdma_addr_readw, bm); | |
93 | register_ioport_write(addr + 4, 4, 4, bmdma_addr_writel, bm); | |
94 | register_ioport_read(addr + 4, 4, 4, bmdma_addr_readl, bm); | |
95 | addr += 8; | |
96 | } | |
97 | } | |
98 | ||
99 | static void piix3_reset(void *opaque) | |
100 | { | |
101 | PCIIDEState *d = opaque; | |
102 | uint8_t *pci_conf = d->dev.config; | |
103 | int i; | |
104 | ||
105 | for (i = 0; i < 2; i++) | |
106 | ide_dma_cancel(&d->bmdma[i]); | |
107 | ||
108 | pci_conf[0x04] = 0x00; | |
109 | pci_conf[0x05] = 0x00; | |
110 | pci_conf[0x06] = 0x80; /* FBC */ | |
111 | pci_conf[0x07] = 0x02; // PCI_status_devsel_medium | |
112 | pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */ | |
113 | } | |
114 | ||
115 | static int pci_piix_ide_initfn(PCIIDEState *d) | |
116 | { | |
117 | uint8_t *pci_conf = d->dev.config; | |
118 | ||
119 | pci_conf[0x09] = 0x80; // legacy ATA mode | |
120 | pci_config_set_class(pci_conf, PCI_CLASS_STORAGE_IDE); | |
121 | pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type | |
122 | ||
123 | qemu_register_reset(piix3_reset, d); | |
124 | piix3_reset(d); | |
125 | ||
126 | pci_register_bar(&d->dev, 4, 0x10, PCI_ADDRESS_SPACE_IO, bmdma_map); | |
127 | ||
128 | register_savevm("ide", 0, 3, pci_ide_save, pci_ide_load, d); | |
129 | ||
130 | ide_bus_new(&d->bus[0], &d->dev.qdev); | |
131 | ide_bus_new(&d->bus[1], &d->dev.qdev); | |
132 | ide_init_ioport(&d->bus[0], 0x1f0, 0x3f6); | |
133 | ide_init_ioport(&d->bus[1], 0x170, 0x376); | |
134 | ||
135 | ide_init2(&d->bus[0], NULL, NULL, isa_reserve_irq(14)); | |
136 | ide_init2(&d->bus[1], NULL, NULL, isa_reserve_irq(15)); | |
137 | return 0; | |
138 | } | |
139 | ||
140 | static int pci_piix3_ide_initfn(PCIDevice *dev) | |
141 | { | |
142 | PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev); | |
143 | ||
144 | d->type = IDE_TYPE_PIIX3; | |
145 | pci_config_set_vendor_id(d->dev.config, PCI_VENDOR_ID_INTEL); | |
146 | pci_config_set_device_id(d->dev.config, PCI_DEVICE_ID_INTEL_82371SB_1); | |
147 | return pci_piix_ide_initfn(d); | |
148 | } | |
149 | ||
150 | static int pci_piix4_ide_initfn(PCIDevice *dev) | |
151 | { | |
152 | PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev); | |
153 | ||
154 | d->type = IDE_TYPE_PIIX4; | |
155 | pci_config_set_vendor_id(d->dev.config, PCI_VENDOR_ID_INTEL); | |
156 | pci_config_set_device_id(d->dev.config, PCI_DEVICE_ID_INTEL_82371AB); | |
157 | return pci_piix_ide_initfn(d); | |
158 | } | |
159 | ||
160 | /* hd_table must contain 4 block drivers */ | |
161 | /* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */ | |
162 | void pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn) | |
163 | { | |
164 | PCIDevice *dev; | |
165 | ||
166 | dev = pci_create_simple(bus, devfn, "PIIX3 IDE"); | |
167 | pci_ide_create_devs(dev, hd_table); | |
168 | } | |
169 | ||
170 | /* hd_table must contain 4 block drivers */ | |
171 | /* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */ | |
172 | void pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn) | |
173 | { | |
174 | PCIDevice *dev; | |
175 | ||
176 | dev = pci_create_simple(bus, devfn, "PIIX4 IDE"); | |
177 | pci_ide_create_devs(dev, hd_table); | |
178 | } | |
179 | ||
180 | static PCIDeviceInfo piix_ide_info[] = { | |
181 | { | |
182 | .qdev.name = "PIIX3 IDE", | |
183 | .qdev.size = sizeof(PCIIDEState), | |
184 | .init = pci_piix3_ide_initfn, | |
185 | },{ | |
186 | .qdev.name = "PIIX4 IDE", | |
187 | .qdev.size = sizeof(PCIIDEState), | |
188 | .init = pci_piix4_ide_initfn, | |
189 | },{ | |
190 | /* end of list */ | |
191 | } | |
192 | }; | |
193 | ||
194 | static void piix_ide_register(void) | |
195 | { | |
196 | pci_qdev_register_many(piix_ide_info); | |
197 | } | |
198 | device_init(piix_ide_register); |