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); 94