@samitouri / QOSamiQemu
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1 /*
2 * libqos driver framework
3 *
4 * Copyright (c) 2019 Red Hat, Inc.
5 *
6 * Author: Paolo Bonzini <pbonzini@redhat.com>
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1 as published by the Free Software Foundation.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see <http://www.gnu.org/licenses/>
19 */
20
21 #include "qemu/osdep.h"
22 #include "../libqtest.h"
23 #include "libqos-malloc.h"
24 #include "qgraph.h"
25 #include "i2c.h"
26 #include "hw/i2c/imx_i2c.h"
27
28 #define ARM_PAGE_SIZE 4096
29 #define IMX25_PDK_RAM_START 0x80000000
30 #define IMX25_PDK_RAM_END 0x88000000
31
32 typedef struct QIMX25PDKMachine QIMX25PDKMachine;
33
34 struct QIMX25PDKMachine {
35 QOSGraphObject obj;
36 QGuestAllocator alloc;
37 IMXI2C i2c_1;
38 };
39
40 static void *imx25_pdk_get_driver(void *object, const char *interface)
41 {
42 QIMX25PDKMachine *machine = object;
43 if (!g_strcmp0(interface, "memory")) {
44 return &machine->alloc;
45 }
46
47 fprintf(stderr, "%s not present in arm/imx25_pdk\n", interface);
48 g_assert_not_reached();
49 }
50
51 static QOSGraphObject *imx25_pdk_get_device(void *obj, const char *device)
52 {
53 QIMX25PDKMachine *machine = obj;
54 if (!g_strcmp0(device, TYPE_IMX_I2C)) {
55 return &machine->i2c_1.obj;
56 }
57
58 fprintf(stderr, "%s not present in arm/imx25_pdk\n", device);
59 g_assert_not_reached();
60 }
61
62 static void imx25_pdk_destructor(QOSGraphObject *obj)
63 {
64 QIMX25PDKMachine *machine = (QIMX25PDKMachine *) obj;
65 alloc_destroy(&machine->alloc);
66 }
67
68 static void *qos_create_machine_arm_imx25_pdk(QTestState *qts)
69 {
70 QIMX25PDKMachine *machine = g_new0(QIMX25PDKMachine, 1);
71
72 alloc_init(&machine->alloc, 0,
73 IMX25_PDK_RAM_START,
74 IMX25_PDK_RAM_END,
75 ARM_PAGE_SIZE);
76 machine->obj.get_device = imx25_pdk_get_device;
77 machine->obj.get_driver = imx25_pdk_get_driver;
78 machine->obj.destructor = imx25_pdk_destructor;
79
80 imx_i2c_init(&machine->i2c_1, qts, 0x43f80000);
81 return &machine->obj;
82 }
83
84 static void imx25_pdk_register_nodes(void)
85 {
86 QOSGraphEdgeOptions edge = {
87 .extra_device_opts = "bus=i2c-bus.0"
88 };
89 qos_node_create_machine("arm/imx25-pdk", qos_create_machine_arm_imx25_pdk);
90 qos_node_contains("arm/imx25-pdk", TYPE_IMX_I2C, &edge, NULL);
91 }
92
93 libqos_init(imx25_pdk_register_nodes);