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 "qemu/module.h"
22 #include "libqos/malloc.h"
23 #include "libqos/qgraph.h"
24 #include "sdhci.h"
25 
26 #define ARM_PAGE_SIZE             4096
27 #define RASPI2_RAM_ADDR           0
28 #define RASPI2_RAM_SIZE           0x20000000
29 
30 typedef struct QRaspi2Machine QRaspi2Machine;
31 
32 struct QRaspi2Machine {
33     QOSGraphObject obj;
34     QGuestAllocator alloc;
35     QSDHCI_MemoryMapped sdhci;
36 };
37 
38 static void *raspi2_get_driver(void *object, const char *interface)
39 {
40     QRaspi2Machine *machine = object;
41     if (!g_strcmp0(interface, "memory")) {
42         return &machine->alloc;
43     }
44 
45     fprintf(stderr, "%s not present in arm/raspi2\n", interface);
46     g_assert_not_reached();
47 }
48 
49 static QOSGraphObject *raspi2_get_device(void *obj, const char *device)
50 {
51     QRaspi2Machine *machine = obj;
52     if (!g_strcmp0(device, "generic-sdhci")) {
53         return &machine->sdhci.obj;
54     }
55 
56     fprintf(stderr, "%s not present in arm/raspi2\n", device);
57     g_assert_not_reached();
58 }
59 
60 static void raspi2_destructor(QOSGraphObject *obj)
61 {
62     QRaspi2Machine *machine = (QRaspi2Machine *) obj;
63     alloc_destroy(&machine->alloc);
64 }
65 
66 static void *qos_create_machine_arm_raspi2(QTestState *qts)
67 {
68     QRaspi2Machine *machine = g_new0(QRaspi2Machine, 1);
69 
70     alloc_init(&machine->alloc, 0,
71                RASPI2_RAM_ADDR + (1 << 20),
72                RASPI2_RAM_ADDR + RASPI2_RAM_SIZE,
73                ARM_PAGE_SIZE);
74     machine->obj.get_device = raspi2_get_device;
75     machine->obj.get_driver = raspi2_get_driver;
76     machine->obj.destructor = raspi2_destructor;
77     qos_init_sdhci_mm(&machine->sdhci, qts, 0x3f300000, &(QSDHCIProperties) {
78         .version = 3,
79         .baseclock = 52,
80         .capab.sdma = false,
81         .capab.reg = 0x052134b4
82     });
83     return &machine->obj;
84 }
85 
86 static void raspi2_register_nodes(void)
87 {
88     qos_node_create_machine("arm/raspi2", qos_create_machine_arm_raspi2);
89     qos_node_contains("arm/raspi2", "generic-sdhci", NULL);
90 }
91 
92 libqos_init(raspi2_register_nodes);
93