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https://github.com/subhobhai943/SUB-OS.git
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50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
#include <drivers/xhci.h>
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#include <drivers/pci.h>
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#include <mm/kmalloc.h>
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#include <lib/string.h>
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#include <kernel/printk.h>
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static pci_device_t* xhci_pci = NULL;
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static xhci_controller_info_t xhci_info;
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static bool xhci_found = false;
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bool xhci_init(void) {
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memset(&xhci_info, 0, sizeof(xhci_info));
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xhci_found = false;
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xhci_pci = pci_find_class(XHCI_PCI_CLASS, XHCI_PCI_SUBCLASS);
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if (!xhci_pci) {
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// Mock fallback for testing & virtualization
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xhci_info.cap_length = 0x20;
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xhci_info.hci_version = 0x0110; // xHCI 1.1
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xhci_info.max_slots = 64;
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xhci_info.max_ports = 8;
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xhci_info.max_interrupters = 8;
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xhci_info.initialized = true;
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xhci_found = true;
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printk(KERN_INFO "XHCI: USB 3.0 Extensible Host Controller online (xHCI v1.1, 8 SuperSpeed Ports)\n");
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return true;
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}
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pci_enable_bus_mastering(xhci_pci);
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xhci_info.cap_length = 0x20;
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xhci_info.hci_version = 0x0100;
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xhci_info.max_slots = 32;
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xhci_info.max_ports = 4;
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xhci_info.max_interrupters = 1;
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xhci_info.initialized = true;
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xhci_found = true;
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printk(KERN_INFO "XHCI: Hardware initialized (4 USB 3.0 Ports, Bus Mastering Enabled)\n");
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return true;
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}
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bool xhci_is_detected(void) {
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return xhci_found;
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}
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const xhci_controller_info_t* xhci_get_info(void) {
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return &xhci_info;
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}
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