qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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xlnx-usb-subsystem.c (3342B)

      1 /*
      2  * QEMU model of the Xilinx usb subsystem
      3  *
      4  * Copyright (c) 2020 Xilinx Inc. Sai Pavan Boddu <sai.pava.boddu@xilinx.com>
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a copy
      7  * of this software and associated documentation files (the "Software"), to deal
      8  * in the Software without restriction, including without limitation the rights
      9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     10  * copies of the Software, and to permit persons to whom the Software is
     11  * furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     22  * THE SOFTWARE.
     23  */
     24 
     25 #include "qemu/osdep.h"
     26 #include "hw/sysbus.h"
     27 #include "hw/register.h"
     28 #include "qemu/bitops.h"
     29 #include "qom/object.h"
     30 #include "qapi/error.h"
     31 #include "hw/qdev-properties.h"
     32 #include "hw/usb/xlnx-usb-subsystem.h"
     33 
     34 static void versal_usb2_realize(DeviceState *dev, Error **errp)
     35 {
     36     VersalUsb2 *s = VERSAL_USB2(dev);
     37     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     38     Error *err = NULL;
     39 
     40     sysbus_realize(SYS_BUS_DEVICE(&s->dwc3), &err);
     41     if (err) {
     42         error_propagate(errp, err);
     43         return;
     44     }
     45     sysbus_realize(SYS_BUS_DEVICE(&s->usb2Ctrl), &err);
     46     if (err) {
     47         error_propagate(errp, err);
     48         return;
     49     }
     50     sysbus_init_mmio(sbd, &s->dwc3_mr);
     51     sysbus_init_mmio(sbd, &s->usb2Ctrl_mr);
     52     qdev_pass_gpios(DEVICE(&s->dwc3.sysbus_xhci), dev, SYSBUS_DEVICE_GPIO_IRQ);
     53 }
     54 
     55 static void versal_usb2_init(Object *obj)
     56 {
     57     VersalUsb2 *s = VERSAL_USB2(obj);
     58 
     59     object_initialize_child(obj, "versal.dwc3", &s->dwc3,
     60                             TYPE_USB_DWC3);
     61     object_initialize_child(obj, "versal.usb2-ctrl", &s->usb2Ctrl,
     62                             TYPE_XILINX_VERSAL_USB2_CTRL_REGS);
     63     memory_region_init_alias(&s->dwc3_mr, obj, "versal.dwc3_alias",
     64                              &s->dwc3.iomem, 0, DWC3_SIZE);
     65     memory_region_init_alias(&s->usb2Ctrl_mr, obj, "versal.usb2Ctrl_alias",
     66                              &s->usb2Ctrl.iomem, 0, USB2_REGS_R_MAX * 4);
     67     qdev_alias_all_properties(DEVICE(&s->dwc3), obj);
     68     qdev_alias_all_properties(DEVICE(&s->dwc3.sysbus_xhci), obj);
     69     object_property_add_alias(obj, "dma", OBJECT(&s->dwc3.sysbus_xhci), "dma");
     70 }
     71 
     72 static void versal_usb2_class_init(ObjectClass *klass, void *data)
     73 {
     74     DeviceClass *dc = DEVICE_CLASS(klass);
     75 
     76     dc->realize = versal_usb2_realize;
     77 }
     78 
     79 static const TypeInfo versal_usb2_info = {
     80     .name          = TYPE_XILINX_VERSAL_USB2,
     81     .parent        = TYPE_SYS_BUS_DEVICE,
     82     .instance_size = sizeof(VersalUsb2),
     83     .class_init    = versal_usb2_class_init,
     84     .instance_init = versal_usb2_init,
     85 };
     86 
     87 static void versal_usb_types(void)
     88 {
     89     type_register_static(&versal_usb2_info);
     90 }
     91 
     92 type_init(versal_usb_types)