ClassicOS/kernel/usb.c

#include "usb.h"
#include <stdint.h>
#include <stdbool.h>

// USB version detection
bool usb_detect_version(uint16_t *version) {
    if (!version) return false;
    *version = 0x0110; // Example: USB 1.1
    return true;
}

// USB initialization for 1.x
bool usb_init(void) {
    // Detect controller type (UHCI or OHCI)
    bool uhci_supported = uhci_init();
    bool ohci_supported = ohci_init();
    
    if (!uhci_supported && !ohci_supported) {
        return false; // No supported controllers found
    }
    
    return true;
}

// USB device enumeration (1.x)
bool usb_enumerate_devices(void) {
    // Implementation for detecting devices on USB 1.x ports
    return true;
}

// HID initialization for USB 1.x
bool usb_hid_init(void) {
    // Ensure USB is initialized
    if (!usb_init()) return false;
    
    return usb_enumerate_devices();
}

// USB transfers (stubs for 1.x)
bool usb_control_transfer(/* parameters */) {
    // Implement control transfer for USB 1.x
    return true;
}

bool usb_interrupt_transfer(/* parameters */) {
    // Implement interrupt transfer for USB 1.x
    return true;
}

bool usb_bulk_transfer(/* parameters */) {
    // Implement bulk transfer for USB 1.x
    return true;
}

// USB host controller initialization (UHCI & OHCI)
bool uhci_init(void) {
    // Initialize UHCI controller (USB 1.x)
    return true;
}

bool ohci_init(void) {
    // Initialize OHCI controller (USB 1.x)
    return true;
}