meson: convert hw/vfio
[qemu.git] / hw / sd / aspeed_sdhci.c
1 /*
2 * Aspeed SD Host Controller
3 * Eddie James <eajames@linux.ibm.com>
4 *
5 * Copyright (C) 2019 IBM Corp
6 * SPDX-License-Identifer: GPL-2.0-or-later
7 */
8
9 #include "qemu/osdep.h"
10 #include "qemu/log.h"
11 #include "qemu/error-report.h"
12 #include "hw/sd/aspeed_sdhci.h"
13 #include "qapi/error.h"
14 #include "hw/irq.h"
15 #include "migration/vmstate.h"
16 #include "hw/qdev-properties.h"
17
18 #define ASPEED_SDHCI_INFO 0x00
19 #define ASPEED_SDHCI_INFO_RESET 0x00030000
20 #define ASPEED_SDHCI_DEBOUNCE 0x04
21 #define ASPEED_SDHCI_DEBOUNCE_RESET 0x00000005
22 #define ASPEED_SDHCI_BUS 0x08
23 #define ASPEED_SDHCI_SDIO_140 0x10
24 #define ASPEED_SDHCI_SDIO_148 0x18
25 #define ASPEED_SDHCI_SDIO_240 0x20
26 #define ASPEED_SDHCI_SDIO_248 0x28
27 #define ASPEED_SDHCI_WP_POL 0xec
28 #define ASPEED_SDHCI_CARD_DET 0xf0
29 #define ASPEED_SDHCI_IRQ_STAT 0xfc
30
31 #define TO_REG(addr) ((addr) / sizeof(uint32_t))
32
33 static uint64_t aspeed_sdhci_read(void *opaque, hwaddr addr, unsigned int size)
34 {
35 uint32_t val = 0;
36 AspeedSDHCIState *sdhci = opaque;
37
38 switch (addr) {
39 case ASPEED_SDHCI_SDIO_140:
40 val = (uint32_t)sdhci->slots[0].capareg;
41 break;
42 case ASPEED_SDHCI_SDIO_148:
43 val = (uint32_t)sdhci->slots[0].maxcurr;
44 break;
45 case ASPEED_SDHCI_SDIO_240:
46 val = (uint32_t)sdhci->slots[1].capareg;
47 break;
48 case ASPEED_SDHCI_SDIO_248:
49 val = (uint32_t)sdhci->slots[1].maxcurr;
50 break;
51 default:
52 if (addr < ASPEED_SDHCI_REG_SIZE) {
53 val = sdhci->regs[TO_REG(addr)];
54 } else {
55 qemu_log_mask(LOG_GUEST_ERROR,
56 "%s: Out-of-bounds read at 0x%" HWADDR_PRIx "\n",
57 __func__, addr);
58 }
59 }
60
61 return (uint64_t)val;
62 }
63
64 static void aspeed_sdhci_write(void *opaque, hwaddr addr, uint64_t val,
65 unsigned int size)
66 {
67 AspeedSDHCIState *sdhci = opaque;
68
69 switch (addr) {
70 case ASPEED_SDHCI_SDIO_140:
71 sdhci->slots[0].capareg = (uint64_t)(uint32_t)val;
72 break;
73 case ASPEED_SDHCI_SDIO_148:
74 sdhci->slots[0].maxcurr = (uint64_t)(uint32_t)val;
75 break;
76 case ASPEED_SDHCI_SDIO_240:
77 sdhci->slots[1].capareg = (uint64_t)(uint32_t)val;
78 break;
79 case ASPEED_SDHCI_SDIO_248:
80 sdhci->slots[1].maxcurr = (uint64_t)(uint32_t)val;
81 break;
82 default:
83 if (addr < ASPEED_SDHCI_REG_SIZE) {
84 sdhci->regs[TO_REG(addr)] = (uint32_t)val;
85 } else {
86 qemu_log_mask(LOG_GUEST_ERROR,
87 "%s: Out-of-bounds write at 0x%" HWADDR_PRIx "\n",
88 __func__, addr);
89 }
90 }
91 }
92
93 static const MemoryRegionOps aspeed_sdhci_ops = {
94 .read = aspeed_sdhci_read,
95 .write = aspeed_sdhci_write,
96 .endianness = DEVICE_NATIVE_ENDIAN,
97 .valid.min_access_size = 4,
98 .valid.max_access_size = 4,
99 };
100
101 static void aspeed_sdhci_set_irq(void *opaque, int n, int level)
102 {
103 AspeedSDHCIState *sdhci = opaque;
104
105 if (level) {
106 sdhci->regs[TO_REG(ASPEED_SDHCI_IRQ_STAT)] |= BIT(n);
107
108 qemu_irq_raise(sdhci->irq);
109 } else {
110 sdhci->regs[TO_REG(ASPEED_SDHCI_IRQ_STAT)] &= ~BIT(n);
111
112 qemu_irq_lower(sdhci->irq);
113 }
114 }
115
116 static void aspeed_sdhci_realize(DeviceState *dev, Error **errp)
117 {
118 SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
119 AspeedSDHCIState *sdhci = ASPEED_SDHCI(dev);
120
121 /* Create input irqs for the slots */
122 qdev_init_gpio_in_named_with_opaque(DEVICE(sbd), aspeed_sdhci_set_irq,
123 sdhci, NULL, sdhci->num_slots);
124
125 sysbus_init_irq(sbd, &sdhci->irq);
126 memory_region_init_io(&sdhci->iomem, OBJECT(sdhci), &aspeed_sdhci_ops,
127 sdhci, TYPE_ASPEED_SDHCI, 0x1000);
128 sysbus_init_mmio(sbd, &sdhci->iomem);
129
130 for (int i = 0; i < sdhci->num_slots; ++i) {
131 Object *sdhci_slot = OBJECT(&sdhci->slots[i]);
132 SysBusDevice *sbd_slot = SYS_BUS_DEVICE(&sdhci->slots[i]);
133
134 if (!object_property_set_int(sdhci_slot, "sd-spec-version", 2, errp)) {
135 return;
136 }
137
138 if (!object_property_set_uint(sdhci_slot, "capareg",
139 ASPEED_SDHCI_CAPABILITIES, errp)) {
140 return;
141 }
142
143 if (!sysbus_realize(sbd_slot, errp)) {
144 return;
145 }
146
147 sysbus_connect_irq(sbd_slot, 0, qdev_get_gpio_in(DEVICE(sbd), i));
148 memory_region_add_subregion(&sdhci->iomem, (i + 1) * 0x100,
149 &sdhci->slots[i].iomem);
150 }
151 }
152
153 static void aspeed_sdhci_reset(DeviceState *dev)
154 {
155 AspeedSDHCIState *sdhci = ASPEED_SDHCI(dev);
156
157 memset(sdhci->regs, 0, ASPEED_SDHCI_REG_SIZE);
158 sdhci->regs[TO_REG(ASPEED_SDHCI_INFO)] = ASPEED_SDHCI_INFO_RESET;
159 sdhci->regs[TO_REG(ASPEED_SDHCI_DEBOUNCE)] = ASPEED_SDHCI_DEBOUNCE_RESET;
160 }
161
162 static const VMStateDescription vmstate_aspeed_sdhci = {
163 .name = TYPE_ASPEED_SDHCI,
164 .version_id = 1,
165 .fields = (VMStateField[]) {
166 VMSTATE_UINT32_ARRAY(regs, AspeedSDHCIState, ASPEED_SDHCI_NUM_REGS),
167 VMSTATE_END_OF_LIST(),
168 },
169 };
170
171 static Property aspeed_sdhci_properties[] = {
172 DEFINE_PROP_UINT8("num-slots", AspeedSDHCIState, num_slots, 0),
173 DEFINE_PROP_END_OF_LIST(),
174 };
175
176 static void aspeed_sdhci_class_init(ObjectClass *classp, void *data)
177 {
178 DeviceClass *dc = DEVICE_CLASS(classp);
179
180 dc->realize = aspeed_sdhci_realize;
181 dc->reset = aspeed_sdhci_reset;
182 dc->vmsd = &vmstate_aspeed_sdhci;
183 device_class_set_props(dc, aspeed_sdhci_properties);
184 }
185
186 static TypeInfo aspeed_sdhci_info = {
187 .name = TYPE_ASPEED_SDHCI,
188 .parent = TYPE_SYS_BUS_DEVICE,
189 .instance_size = sizeof(AspeedSDHCIState),
190 .class_init = aspeed_sdhci_class_init,
191 };
192
193 static void aspeed_sdhci_register_types(void)
194 {
195 type_register_static(&aspeed_sdhci_info);
196 }
197
198 type_init(aspeed_sdhci_register_types)