qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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arm-raspi2-machine.c (2737B)

      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 2.1 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 "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/raspi2b\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/raspi2b\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/raspi2b", qos_create_machine_arm_raspi2);
     89     qos_node_contains("arm/raspi2b", "generic-sdhci", NULL);
     90 }
     91 
     92 libqos_init(raspi2_register_nodes);