tests/libqos/arm-imx25-pdk-machine.c

   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 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 "libqos/qgraph.h"
  25 #include "libqos/i2c.h"
  26
  27 #define ARM_PAGE_SIZE            4096
  28 #define IMX25_PDK_RAM_START      0x80000000
  29 #define IMX25_PDK_RAM_END        0x88000000
  30
  31 typedef struct QIMX25PDKMachine QIMX25PDKMachine;
  32
  33 struct QIMX25PDKMachine {
  34     QOSGraphObject obj;
  35     QGuestAllocator alloc;
  36     IMXI2C i2c_1;
  37 };
  38
  39 static void *imx25_pdk_get_driver(void *object, const char *interface)
  40 {
  41     QIMX25PDKMachine *machine = object;
  42     if (!g_strcmp0(interface, "memory")) {
  43         return &machine->alloc;
  44     }
  45
  46     fprintf(stderr, "%s not present in arm/imx25_pdk\n", interface);
  47     g_assert_not_reached();
  48 }
  49
  50 static QOSGraphObject *imx25_pdk_get_device(void *obj, const char *device)
  51 {
  52     QIMX25PDKMachine *machine = obj;
  53     if (!g_strcmp0(device, "imx.i2c")) {
  54         return &machine->i2c_1.obj;
  55     }
  56
  57     fprintf(stderr, "%s not present in arm/imx25_pdk\n", device);
  58     g_assert_not_reached();
  59 }
  60
  61 static void imx25_pdk_destructor(QOSGraphObject *obj)
  62 {
  63     QIMX25PDKMachine *machine = (QIMX25PDKMachine *) obj;
  64     alloc_destroy(&machine->alloc);
  65 }
  66
  67 static void *qos_create_machine_arm_imx25_pdk(QTestState *qts)
  68 {
  69     QIMX25PDKMachine *machine = g_new0(QIMX25PDKMachine, 1);
  70
  71     alloc_init(&machine->alloc, 0,
  72                IMX25_PDK_RAM_START,
  73                IMX25_PDK_RAM_END,
  74                ARM_PAGE_SIZE);
  75     machine->obj.get_device = imx25_pdk_get_device;
  76     machine->obj.get_driver = imx25_pdk_get_driver;
  77     machine->obj.destructor = imx25_pdk_destructor;
  78
  79     imx_i2c_init(&machine->i2c_1, qts, 0x43f80000);
  80     return &machine->obj;
  81 }
  82
  83 static void imx25_pdk_register_nodes(void)
  84 {
  85     QOSGraphEdgeOptions edge = {
  86         .extra_device_opts = "bus=i2c-bus.0"
  87     };
  88     qos_node_create_machine("arm/imx25-pdk", qos_create_machine_arm_imx25_pdk);
  89     qos_node_contains("arm/imx25-pdk", "imx.i2c", &edge, NULL);
  90 }
  91
  92 libqos_init(imx25_pdk_register_nodes);