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a0a9ba66 EGE |
1 | /* |
2 | * libqos driver framework | |
3 | * | |
4 | * Copyright (c) 2018 Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com> | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License version 2 as published by the Free Software Foundation. | |
9 | * | |
10 | * This library is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with this library; if not, see <http://www.gnu.org/licenses/> | |
17 | */ | |
18 | ||
19 | #include "qemu/osdep.h" | |
20 | #include "libqtest.h" | |
21 | #include "libqos/qgraph.h" | |
22 | #include "pci.h" | |
0b8fa32f | 23 | #include "qemu/module.h" |
a0a9ba66 EGE |
24 | #include "sdhci.h" |
25 | #include "hw/pci/pci.h" | |
26 | ||
27 | static void set_qsdhci_fields(QSDHCI *s, uint8_t version, uint8_t baseclock, | |
28 | bool sdma, uint64_t reg) | |
29 | { | |
30 | s->props.version = version; | |
31 | s->props.baseclock = baseclock; | |
32 | s->props.capab.sdma = sdma; | |
33 | s->props.capab.reg = reg; | |
34 | } | |
35 | ||
36 | /* Memory mapped implementation of QSDHCI */ | |
37 | ||
38 | static uint16_t sdhci_mm_readw(QSDHCI *s, uint32_t reg) | |
39 | { | |
40 | QSDHCI_MemoryMapped *smm = container_of(s, QSDHCI_MemoryMapped, sdhci); | |
41 | return qtest_readw(smm->qts, smm->addr + reg); | |
42 | } | |
43 | ||
44 | static uint64_t sdhci_mm_readq(QSDHCI *s, uint32_t reg) | |
45 | { | |
46 | QSDHCI_MemoryMapped *smm = container_of(s, QSDHCI_MemoryMapped, sdhci); | |
47 | return qtest_readq(smm->qts, smm->addr + reg); | |
48 | } | |
49 | ||
50 | static void sdhci_mm_writeq(QSDHCI *s, uint32_t reg, uint64_t val) | |
51 | { | |
52 | QSDHCI_MemoryMapped *smm = container_of(s, QSDHCI_MemoryMapped, sdhci); | |
53 | qtest_writeq(smm->qts, smm->addr + reg, val); | |
54 | } | |
55 | ||
56 | static void *sdhci_mm_get_driver(void *obj, const char *interface) | |
57 | { | |
58 | QSDHCI_MemoryMapped *smm = obj; | |
59 | if (!g_strcmp0(interface, "sdhci")) { | |
60 | return &smm->sdhci; | |
61 | } | |
62 | fprintf(stderr, "%s not present in generic-sdhci\n", interface); | |
63 | g_assert_not_reached(); | |
64 | } | |
65 | ||
66 | void qos_init_sdhci_mm(QSDHCI_MemoryMapped *sdhci, QTestState *qts, | |
67 | uint32_t addr, QSDHCIProperties *common) | |
68 | { | |
69 | sdhci->obj.get_driver = sdhci_mm_get_driver; | |
70 | sdhci->sdhci.readw = sdhci_mm_readw; | |
71 | sdhci->sdhci.readq = sdhci_mm_readq; | |
72 | sdhci->sdhci.writeq = sdhci_mm_writeq; | |
73 | memcpy(&sdhci->sdhci.props, common, sizeof(QSDHCIProperties)); | |
74 | sdhci->addr = addr; | |
75 | sdhci->qts = qts; | |
76 | } | |
77 | ||
78 | /* PCI implementation of QSDHCI */ | |
79 | ||
80 | static uint16_t sdhci_pci_readw(QSDHCI *s, uint32_t reg) | |
81 | { | |
82 | QSDHCI_PCI *spci = container_of(s, QSDHCI_PCI, sdhci); | |
83 | return qpci_io_readw(&spci->dev, spci->mem_bar, reg); | |
84 | } | |
85 | ||
86 | static uint64_t sdhci_pci_readq(QSDHCI *s, uint32_t reg) | |
87 | { | |
88 | QSDHCI_PCI *spci = container_of(s, QSDHCI_PCI, sdhci); | |
89 | return qpci_io_readq(&spci->dev, spci->mem_bar, reg); | |
90 | } | |
91 | ||
92 | static void sdhci_pci_writeq(QSDHCI *s, uint32_t reg, uint64_t val) | |
93 | { | |
94 | QSDHCI_PCI *spci = container_of(s, QSDHCI_PCI, sdhci); | |
95 | return qpci_io_writeq(&spci->dev, spci->mem_bar, reg, val); | |
96 | } | |
97 | ||
98 | static void *sdhci_pci_get_driver(void *object, const char *interface) | |
99 | { | |
100 | QSDHCI_PCI *spci = object; | |
101 | if (!g_strcmp0(interface, "sdhci")) { | |
102 | return &spci->sdhci; | |
103 | } | |
104 | ||
105 | fprintf(stderr, "%s not present in sdhci-pci\n", interface); | |
106 | g_assert_not_reached(); | |
107 | } | |
108 | ||
109 | static void sdhci_pci_start_hw(QOSGraphObject *obj) | |
110 | { | |
111 | QSDHCI_PCI *spci = (QSDHCI_PCI *)obj; | |
112 | qpci_device_enable(&spci->dev); | |
113 | } | |
114 | ||
115 | static void sdhci_destructor(QOSGraphObject *obj) | |
116 | { | |
117 | QSDHCI_PCI *spci = (QSDHCI_PCI *)obj; | |
118 | qpci_iounmap(&spci->dev, spci->mem_bar); | |
119 | } | |
120 | ||
121 | static void *sdhci_pci_create(void *pci_bus, QGuestAllocator *alloc, void *addr) | |
122 | { | |
123 | QSDHCI_PCI *spci = g_new0(QSDHCI_PCI, 1); | |
124 | QPCIBus *bus = pci_bus; | |
125 | uint64_t barsize; | |
126 | ||
127 | qpci_device_init(&spci->dev, bus, addr); | |
128 | spci->mem_bar = qpci_iomap(&spci->dev, 0, &barsize); | |
129 | spci->sdhci.readw = sdhci_pci_readw; | |
130 | spci->sdhci.readq = sdhci_pci_readq; | |
131 | spci->sdhci.writeq = sdhci_pci_writeq; | |
132 | set_qsdhci_fields(&spci->sdhci, 2, 0, 1, 0x057834b4); | |
133 | ||
134 | spci->obj.get_driver = sdhci_pci_get_driver; | |
135 | spci->obj.start_hw = sdhci_pci_start_hw; | |
136 | spci->obj.destructor = sdhci_destructor; | |
137 | return &spci->obj; | |
138 | } | |
139 | ||
140 | static void qsdhci_register_nodes(void) | |
141 | { | |
142 | QPCIAddress addr = { | |
143 | .devfn = QPCI_DEVFN(4, 0), | |
144 | .vendor_id = PCI_VENDOR_ID_REDHAT, | |
145 | .device_id = PCI_DEVICE_ID_REDHAT_SDHCI, | |
146 | }; | |
147 | ||
148 | QOSGraphEdgeOptions opts = { | |
149 | .extra_device_opts = "addr=04.0", | |
150 | }; | |
151 | ||
152 | /* generic-sdhci */ | |
153 | qos_node_create_driver("generic-sdhci", NULL); | |
154 | qos_node_produces("generic-sdhci", "sdhci"); | |
155 | ||
156 | /* sdhci-pci */ | |
157 | add_qpci_address(&opts, &addr); | |
158 | qos_node_create_driver("sdhci-pci", sdhci_pci_create); | |
159 | qos_node_produces("sdhci-pci", "sdhci"); | |
160 | qos_node_consumes("sdhci-pci", "pci-bus", &opts); | |
161 | ||
162 | } | |
163 | ||
164 | libqos_init(qsdhci_register_nodes); |