Adding XHCI via PCI

CMakeLists.txt

@@ -167,8 +167,10 @@ add_library(vcml STATIC
     ${src}/vcml/models/usb/drive.cpp
     ${src}/vcml/models/usb/keyboard.cpp
     ${src}/vcml/models/usb/xhci.cpp
+    ${src}/vcml/models/usb/xhcipci.cpp
     ${src}/vcml/models/pci/device.cpp
     ${src}/vcml/models/pci/host.cpp
+    ${src}/vcml/models/pci/endpoint.cpp
     ${src}/vcml/models/virtio/mmio.cpp
     ${src}/vcml/models/virtio/pci.cpp
     ${src}/vcml/models/virtio/rng.cpp

include/vcml.h

@@ -118,13 +118,15 @@
 #include "vcml/models/sd/sdhci.h"
 
 #include "vcml/models/usb/xhci.h"
+#include "vcml/models/usb/xhcipci.h"
 #include "vcml/models/usb/device.h"
 #include "vcml/models/usb/keyboard.h"
 #include "vcml/models/usb/drive.h"
 #include "vcml/models/usb/hostdev.h"
 
 #include "vcml/models/pci/device.h"
 #include "vcml/models/pci/host.h"
+#include "vcml/models/pci/endpoint.h"
 
 #include "vcml/models/virtio/mmio.h"
 #include "vcml/models/virtio/pci.h"

include/vcml/models/usb/xhcipci.h

@@ -0,0 +1,43 @@
+/******************************************************************************
+ *                                                                            *
+ * Copyright (C) 2024 MachineWare GmbH                                        *
+ * All Rights Reserved                                                        *
+ *                                                                            *
+ * This is work is licensed under the terms described in the LICENSE file     *
+ * found in the root directory of this source tree.                           *
+ *                                                                            *
+ ******************************************************************************/
+
+#ifndef VCML_USB_XHCIPCI_H
+#define VCML_USB_XHCIPCI_H
+
+#include "vcml/core/types.h"
+#include "vcml/core/range.h"
+#include "vcml/core/systemc.h"
+#include "vcml/core/peripheral.h"
+
+#include "vcml/models/pci/endpoint.h"
+#include "vcml/models/usb/xhci.h"
+
+namespace vcml {
+namespace usb {
+
+class xhcipci : public module, public usb_host_if
+{
+private:
+    pci::endpoint m_ep;
+    usb::xhci m_xhci;
+
+public:
+    pci_base_target_socket pci_in;
+    usb_base_initiator_array usb_out;
+
+    xhcipci(const sc_module_name& name);
+    virtual ~xhcipci();
+    VCML_KIND(usb::xhcipci);
+};
+
+} // namespace usb
+} // namespace vcml
+
+#endif

src/vcml/models/usb/xhcipci.cpp

@@ -0,0 +1,63 @@
+/******************************************************************************
+ *                                                                            *
+ * Copyright (C) 2024 MachineWare GmbH                                        *
+ * All Rights Reserved                                                        *
+ *                                                                            *
+ * This is work is licensed under the terms described in the LICENSE file     *
+ * found in the root directory of this source tree.                           *
+ *                                                                            *
+ ******************************************************************************/
+
+#include "vcml/models/usb/xhcipci.h"
+
+namespace vcml {
+namespace usb {
+
+static const pci_config XHCI_PCIE_CONFIG = {
+    /* pcie            = */ true,
+    /* vendor_id       = */ 0x1234,
+    /* device_id       = */ 0x5678,
+    /* subvendor_id    = */ 0xffff,
+    /* subsystem_id    = */ 0xffff,
+    /* class_code      = */ pci_class_code(0xc, 0x3, 0x30, 1),
+    /* latency_timer   = */ 0,
+    /* max_latency     = */ 0,
+    /* min_grant       = */ 0,
+    /* int_pin         = */ PCI_IRQ_A,
+};
+
+constexpr size_t XHCIPCI_MEMORY_SIZE = 0x4000;
+constexpr size_t XHCIPCI_MSIX_OFFSET = 0x3000;
+
+xhcipci::xhcipci(const sc_module_name& nm):
+    module(nm),
+    usb_host_if(),
+    m_ep("ep", XHCI_PCIE_CONFIG),
+    m_xhci("xhci"),
+    pci_in("pci_in"),
+    usb_out("usb_out") {
+    pci_in.bind(m_ep.pci_in);
+    m_xhci.usb_out.bind(usb_out);
+
+    m_ep.bar_out[0].bind(m_xhci.in);
+    m_xhci.irq.bind(m_ep.irq_in[0]);
+    m_xhci.dma.bind(m_ep.dma_in);
+
+    m_ep.pci_declare_bar(0, XHCIPCI_MEMORY_SIZE, PCI_BAR_MMIO | PCI_BAR_64);
+    m_ep.pci_declare_pm_cap(PCI_PM_CAP_VER_1_1);
+    m_ep.pci_declare_msi_cap(PCI_MSI_VECTOR | PCI_MSI_64BIT | PCI_MSI_QMASK1);
+    m_ep.pci_declare_msix_cap(0, m_ep.irq_in.count(), XHCIPCI_MSIX_OFFSET);
+
+    m_ep.rst.stub();
+    m_xhci.rst.stub();
+
+    m_ep.clk.stub(100 * MHz);
+    m_xhci.clk.stub(100 * MHz);
+}
+
+xhcipci::~xhcipci() {
+    // nothing to do
+}
+
+} // namespace usb
+} // namespace vcml