trying to get xhci working on vboxHEADmain

2 files changed, 2373 insertions, 0 deletions

diff --git a/kernel/src/drivers/xhci.cpp b/kernel/src/drivers/xhci.cpp
new file mode 100644
index 0000000..696e2bc
--- /dev/null
+++ b/kernel/src/drivers/xhci.cpp
@@ -0,0 +1,1666 @@
+#include <drivers/xhci.hpp>
+#include <klibc/stdio.hpp>
+#include <klibc/string.hpp>
+#include <klibc/stdlib.hpp>
+#include <generic/hhdm.hpp>
+#include <generic/pmm.hpp>
+#include <generic/time.hpp>
+#include <generic/scheduling.hpp>
+#include <generic/paging.hpp>
+#include <utils/align.hpp>
+#include <generic/evdev.hpp>
+#include <utils/gobject.hpp>
+
+#if defined(__x86_64__)
+#include <arch/x86_64/assembly.hpp>
+#include <arch/x86_64/drivers/pci.hpp>
+#endif
+
+xhci_device_t* xhci_list;
+
+void __xhci_put_new_device(xhci_device_t* dev) {
+    if(!dev) {
+        return;
+    }
+
+    if(!xhci_list) {
+        xhci_list = dev;
+    } else {
+        dev->next = xhci_list;
+        xhci_list = dev;
+    }
+
+}
+
+void __xhci_doorbell(xhci_device_t* dev,uint32_t value) {
+    arch::memory_barrier();
+    *dev->doorbell = value;
+    arch::memory_barrier();
+}
+
+void __xhci_doorbell_id(xhci_device_t* dev,uint32_t idx,uint32_t val) {
+    arch::memory_barrier();
+    dev->doorbell[idx] = val;
+    arch::memory_barrier();
+}
+
+void __xhci_reset(xhci_device_t* dev) {
+
+    time::timer->sleep(50*1000); // wait some time
+
+    dev->op->usbcmd |= (1 << 1);
+    uint16_t timeout = XHCI_RESET_TIMEOUT;
+    while(dev->op->usbsts & (1 << 11)) {
+        if(!timeout) {
+            log("xhci","Can't reset XHCI Controller, ignoring");
+            break;
+        }
+        time::timer->sleep(5 * 1000);
+        timeout = timeout - 1;
+    }
+
+    time::timer->sleep(5000);
+
+}
+
+void __xhci_enable(xhci_device_t* dev) {
+    time::timer->sleep(50*1000);
+    dev->op->usbcmd |= (1 << 0) | (1 << 2);
+    uint16_t timeout = XHCI_RESET_TIMEOUT;
+    while(dev->op->usbsts & (1 << 0)) {
+        if(!timeout) {
+            log("xhci","Can't start XHCI Controller, crying");
+            break;
+        }
+        time::timer->sleep(5 * 1000);
+        timeout = timeout - 1;
+    }
+
+    time::timer->sleep(5000);
+
+}
+
+void __xhci_reset_intr(xhci_device_t* dev, uint16_t intr) {
+
+    if(intr > dev->cap->hcsparams1.maxintrs) {
+        log("xhci","Intr is higher than maxintrs! Skipping");
+        return;
+    }
+
+    dev->op->usbsts = (1 << 3);
+    dev->runtime->int_regs[intr].iman |= (1 << 0);
+}
+
+void __xhci_punch_intr(xhci_device_t* dev,uint16_t intr) {
+    dev->runtime->int_regs[intr].erdp.event_busy = 1;
+}
+
+void __xhci_update_stepfather(xhci_device_t* dev,xhci_event_ring_ctx_t* grandpa) {
+    (void)dev;
+    grandpa->father->erdp_val = grandpa->table[0].base + (grandpa->queue * sizeof(xhci_trb_t));
+}
+
+xhci_trb_t* __xhci_move_father(xhci_device_t* dev,xhci_event_ring_ctx_t* ctx) {
+    (void)dev;
+    xhci_trb_t* trb = &ctx->trb[ctx->queue++];
+    if(ctx->queue == ctx->trb_limit) {
+        ctx->cycle = !ctx->cycle;
+        ctx->queue = 0;
+    }
+    return trb;
+}
+
+xhci_event_ring_ctx_t* __xhci_create_event_ring(xhci_device_t* dev,uint16_t trb_size,volatile IR_t* stepfather,uint16_t sons) {
+    xhci_event_ring_ctx_t* ring_info = new xhci_event_ring_ctx_t;
+    ring_info->cycle = 1;
+    ring_info->queue = 0;
+    ring_info->father = stepfather; // :pensive:
+    ring_info->trb_limit = trb_size;
+    ring_info->trb = 0;
+
+    uint64_t new_table = pmm::buddy::alloc(ALIGNPAGEUP(sons * sizeof(xhci_erst_t))).phys;
+    void* virt_table = (void*)(new_table + etc::hhdm());
+    
+    ring_info->table = (xhci_erst_t*)virt_table;
+
+    uint64_t phys_trb = pmm::buddy::alloc(16 * PAGE_SIZE).phys;
+    ring_info->table[0].base = phys_trb;
+    ring_info->table[0].size = trb_size;
+
+    ring_info->trb = (xhci_trb_t*)(phys_trb + etc::hhdm());
+
+    stepfather->erstsz = sons;
+    __xhci_update_stepfather(dev,ring_info);
+    stepfather->erstba = new_table;
+
+    return ring_info;
+
+}
+
+xhci_trb_t get_trb(xhci_event_ring_ctx_t* father,uint16_t idx) {
+    return father->trb[idx];
+}
+
+int __xhci_event_receive(xhci_device_t* dev,xhci_event_ring_ctx_t* father,xhci_trb_t** out) { // it will return trb virtual addresses 
+    int len = 0;
+    arch::memory_barrier();
+    while(get_trb(father,father->queue).info_s.cycle == father->cycle)
+        out[len++] = __xhci_move_father(dev,father);
+    __xhci_punch_intr(dev,0);
+    __xhci_update_stepfather(dev,father);
+    arch::memory_barrier();
+    return len;
+}
+
+xhci_command_ring_ctx_t* __xhci_create_command_ring(xhci_device_t* dev,uint16_t trb_size) {
+    (void)dev;
+    xhci_command_ring_ctx_t* ring_info = new xhci_command_ring_ctx_t;
+    ring_info->cycle = 1;
+    ring_info->queue = 0;
+    ring_info->trb_limit = trb_size;
+
+    uint64_t phys_trb = pmm::buddy::alloc(ALIGNPAGEUP(trb_size * sizeof(xhci_trb_t))).phys;
+
+    ring_info->phys = phys_trb;
+
+    ring_info->trb = (xhci_trb_t*)(phys_trb + etc::hhdm());
+    ring_info->trb[trb_size - 1].base = phys_trb;
+    ring_info->trb[trb_size - 1].info = (6 << 10) | (1 << 1) | (1 << 0);
+    return ring_info;
+}
+
+
+void __xhci_command_ring_queue(xhci_device_t* dev,xhci_command_ring_ctx_t* ctx,xhci_trb_t* trb) {
+    (void)dev;
+    trb->info |= ctx->cycle;
+    klibc::memcpy(&ctx->trb[ctx->queue],trb,sizeof(xhci_trb_t));
+    if(++ctx->queue == ctx->trb_limit - 1) {
+        ctx->queue = 0;
+        ctx->trb[ctx->trb_limit - 1].info = (6 << 10) | (1 << 1) | (ctx->cycle << 0); 
+        ctx->cycle = !ctx->cycle;
+    }
+    arch::memory_barrier();
+}
+
+void __xhci_setup_run(xhci_device_t* dev) {
+    volatile IR_t* head = (volatile IR_t*)&dev->runtime->int_regs[0];
+    head->iman |= (1 << 1);
+    
+    dev->event_ring = __xhci_create_event_ring(dev,256,head,1);
+
+    __xhci_reset_intr(dev,0);
+} 
+
+void __xhci_fill_dcbaa(xhci_device_t* dev) {
+
+    uint64_t phys_dcbaa = pmm::buddy::alloc(ALIGNPAGEUP(8*dev->cap->hcsparams1.maxslots)).phys;
+
+    uint64_t* dcbaa = (uint64_t*)(phys_dcbaa  + etc::hhdm());
+
+    if(dev->calculated_scratchpad_count) {
+
+        uint64_t phys_list = pmm::buddy::alloc(ALIGNPAGEUP(8*dev->calculated_scratchpad_count)).phys;
+
+        uint64_t* list = (uint64_t*)(phys_list  + etc::hhdm());
+        for(uint16_t i = 0;i < dev->calculated_scratchpad_count;i++) {
+            uint64_t hi = pmm::freelist::alloc_4k();
+            list[i] = hi;
+        }
+        dcbaa[0] = phys_list;
+    }
+
+    dev->dcbaa = (uint64_t*)dcbaa;
+    dev->op->dcbaap = phys_dcbaa;
+    time::timer->sleep(5000);
+}
+
+void __xhci_setup_op(xhci_device_t* dev) {
+    __xhci_fill_dcbaa(dev);
+    dev->com_ring = __xhci_create_command_ring(dev,128); // i dont think what command ring will be fat 
+    dev->op->crcr = dev->com_ring->phys | dev->com_ring->cycle; 
+    dev->op->config = dev->cap->hcsparams1.maxslots;
+    dev->op->dnctrl = 0xFFFF;
+} 
+
+volatile uint32_t* __xhci_portsc(xhci_device_t* dev,uint32_t portnum) {
+    return ((volatile uint32_t*)(dev->xhci_virt_base + 0x400 + dev->cap->caplength + (0x10 * portnum)));
+}
+
+const char* trb_type_to_str(int type) {
+    switch(type) {
+        case TRB_COMMANDCOMPLETIONEVENT_TYPE:
+            return "TRB_COMMAND_COMPLETION_EVENT";
+        case TRB_TRANSFEREVENT_TYPE:
+            return "TRB_TRANSFER_EVENT";
+        default:
+            return "Unknown";
+    }
+}
+
+xhci_trb_t __xhci_event_wait(xhci_device_t* dev,int type) {
+    xhci_event_ring_ctx_t* father = dev->event_ring;
+    xhci_trb_t* buffer[1024];
+    int timeout = 100;
+    while(1) {
+        arch::memory_barrier();
+        int count = 0;
+        klibc::memset(buffer,0,sizeof(xhci_trb_t*) * 1024);
+        if(get_trb(father,father->queue).info_s.cycle == father->cycle)
+            count = __xhci_event_receive(dev,father,buffer);
+
+        if(count) {
+            xhci_trb_t* current = 0;
+            for(int i = 0;i < count;i++) {
+                current = buffer[i];
+                if(current->info_s.type == type) {
+                    return *current;
+                } else {
+                    log("xhci","Wait for wrong type %d",current->info_s.type);
+                }
+            }
+        }
+
+        if(--timeout == 0) {
+            xhci_trb_t t;
+            t.base = 0xDEAD;
+            t.ret_code = 0;
+            return t;
+        }
+
+        arch::memory_barrier();
+        time::timer->sleep(5000);
+        
+    }
+}
+
+void __xhci_clear_event(xhci_device_t* dev) {
+    xhci_trb_t* buffer[1024];
+    if(get_trb(dev->event_ring,dev->event_ring->queue).info_s.cycle == dev->event_ring->cycle)
+        __xhci_event_receive(dev,dev->event_ring,buffer);
+}
+
+
+xhci_port_ring_ctx_t* __xhci_setup_port_ring(uint16_t trb_count,uint16_t slot) {
+    xhci_port_ring_ctx_t* ring_info = new xhci_port_ring_ctx_t;
+    ring_info->cycle = 1;
+    ring_info->queue = 0;
+    ring_info->slot = slot;
+    ring_info->trb_limit = trb_count;
+
+    uint64_t phys_trb = pmm::buddy::alloc(16 * 4096).phys;
+    ring_info->trb = (xhci_trb_t*)(phys_trb  + etc::hhdm());
+
+    ring_info->phys = phys_trb;
+    ring_info->trb[trb_count - 1].base = phys_trb;
+    ring_info->trb[trb_count - 1].info = (6 << 10) | (1 << 1) | (1 << 0);
+    return ring_info;
+}
+
+// its same as command ring
+void __xhci_port_ring_queue(xhci_port_ring_ctx_t* ctx,xhci_trb_t* trb) {
+    trb->info |= ctx->cycle;
+    klibc::memcpy(&ctx->trb[ctx->queue],trb,sizeof(xhci_trb_t));
+    if(++ctx->queue == ctx->trb_limit - 1) {
+        ctx->queue = 0;
+        ctx->trb[ctx->trb_limit - 1].info = (6 << 10) | (1 << 1) | (ctx->cycle << 0); 
+        ctx->cycle = !ctx->cycle;
+    }
+}
+
+void __xhci_create_dcbaa(xhci_device_t* dev,uint32_t slotid,uint64_t addr) {
+    dev->dcbaa[slotid] = addr;
+}
+
+xhci_usb_device_t* usbdevs = 0;
+
+xhci_usb_device_t* __xhci_alloc_dev(uint32_t portnum,uint32_t slotid) {
+    xhci_usb_device_t* dev = new xhci_usb_device_t;
+    dev->next = 0;
+    dev->portnum = portnum;
+    dev->slotid = slotid;
+    dev->transfer_ring = __xhci_setup_port_ring(256,slotid);
+    dev->phys_input_ctx = pmm::freelist::alloc_4k();
+    if(!usbdevs) {
+        usbdevs = dev;
+    } else {
+        dev->next = usbdevs;
+        usbdevs = dev;
+    }
+    return dev;
+}
+
+int __xhci_enable_slot(xhci_device_t* dev, int portnum) {
+    xhci_trb_t trb;
+
+    klibc::memset(&trb,0,sizeof(xhci_trb_t));
+
+    trb.info_s.intoncompletion = 1;
+    trb.info_s.type = TRB_ENABLESLOTCOMMAND_TYPE;
+
+    __xhci_clear_event(dev);
+
+    __xhci_command_ring_queue(dev,dev->com_ring,&trb);
+    __xhci_doorbell(dev,0);
+    time::timer->sleep(25000);
+    
+    xhci_trb_t ret = __xhci_event_wait(dev,TRB_COMMANDCOMPLETIONEVENT_TYPE);
+
+    if(ret.base == 0xDEAD) {
+        log("xhci","Timeout for port %d in slot enabling",portnum);
+        return 0;
+    }
+
+    xhci_slot_trb_t* slot_ret = (xhci_slot_trb_t*)&ret;
+
+    if(ret.ret_code != 1)
+        log("xhci","Can't allocate slot for port %d (ret %d)",portnum,ret.ret_code);
+
+    return slot_ret->info_s.slotid;
+
+}
+
+int __xhci_set_addr(xhci_device_t* dev,uint64_t addr,uint32_t id,char bsr) {
+    (void)bsr;
+    xhci_set_addr_trb_t trb;
+    klibc::memset(&trb,0,sizeof(trb));
+    trb.base = addr;
+    trb.info_s.bsr = 0;
+    trb.info_s.type = TRB_ADDRESSDEVICECOMMAND_TYPE;
+    trb.info_s.slotid = id;
+    __xhci_clear_event(dev);
+
+    time::timer->sleep(5000);
+
+    __xhci_clear_event(dev);
+
+    __xhci_command_ring_queue(dev,dev->com_ring,(xhci_trb_t*)&trb);
+    __xhci_doorbell(dev,0);
+    time::timer->sleep(5000);
+    
+    xhci_trb_t ret = __xhci_event_wait(dev,TRB_COMMANDCOMPLETIONEVENT_TYPE);
+
+    if(ret.ret_code != 1 && ret.ret_code != 0)
+        log("xhci","Can't set XHCI port address (ret %d)",ret.ret_code);
+
+    return ret.ret_code;
+
+}
+
+xhci_trb_t __xhci_send_usb_request_packet(xhci_device_t* dev,xhci_usb_device_t* usbdev,xhci_usb_command_t usbcommand,void* out,uint64_t len) {
+
+    uint64_t phys_status_buf = pmm::freelist::alloc_4k();
+    uint64_t phys_desc_buf = pmm::freelist::alloc_4k();
+
+    void* desc_buf = (void*)(phys_desc_buf + etc::hhdm());
+
+    klibc::memset(out,0,len);
+
+    xhci_setupstage_trb_t setup;
+    xhci_datastage_trb_t data;
+    xhci_eventdata_trb_t event0;
+    xhci_statusstage_trb_t status;
+    xhci_eventdata_trb_t event1;
+
+    klibc::memset(&setup,0,sizeof(xhci_trb_t));
+    klibc::memset(&data,0, sizeof(xhci_trb_t));
+    klibc::memset(&event0,0,sizeof(xhci_trb_t));
+    klibc::memset(&status,0,sizeof(xhci_trb_t));
+    klibc::memset(&event1,0,sizeof(xhci_trb_t));
+
+    klibc::memcpy(&setup.command,&usbcommand,sizeof(xhci_usb_command_t));
+
+    setup.type = TRB_SETUPSTAGE_TYPE;
+    setup.trt = 3;
+    setup.imdata = 1;
+    setup.len = 8;
+
+    data.type = TRB_DATASTAGE_TYPE;
+    data.data = phys_desc_buf;
+    data.len = len;
+    data.chain = 1;
+    data.direction = 1;
+
+    event0.type = TRB_EVENTDATA_TYPE;
+    event0.base = phys_status_buf;
+    event0.chain = 0;
+    event0.intoncomp = 1;
+
+    status.type = TRB_STATUSSTAGE_TYPE;
+    status.chain = 1;
+
+    event1.type = TRB_EVENTDATA_TYPE;
+    event1.intoncomp = 1;
+
+    __xhci_port_ring_queue(usbdev->transfer_ring,(xhci_trb_t*)&setup);
+    __xhci_port_ring_queue(usbdev->transfer_ring,(xhci_trb_t*)&data);
+    __xhci_port_ring_queue(usbdev->transfer_ring,(xhci_trb_t*)&event0);
+    __xhci_port_ring_queue(usbdev->transfer_ring,(xhci_trb_t*)&status);
+    __xhci_port_ring_queue(usbdev->transfer_ring,(xhci_trb_t*)&event1);
+
+
+    arch::memory_barrier();
+
+    __xhci_clear_event(dev);
+
+    __xhci_doorbell_id(dev,usbdev->slotid,1);
+    time::timer->sleep(5000);
+
+    xhci_trb_t ret = __xhci_event_wait(dev,TRB_TRANSFEREVENT_TYPE);
+
+    if(ret.base == 0xDEAD) {
+        ret.ret_code = 0;
+        log("xhci", "timeout !");
+        return ret;
+    }
+
+    if(ret.ret_code != 1) {
+        log("xhci","Failed to request xhci device, idx: %p, val: %p, type: %p, len: %p, request: %d ret_code %d",usbcommand.index,usbcommand.value,usbcommand.type,usbcommand.len,usbcommand.request,ret.ret_code);
+        ret.ret_code = 0;
+        return ret;
+    }
+
+    time::timer->sleep(5000);
+
+    klibc::memcpy(out,desc_buf,len);
+
+    pmm::freelist::free(phys_desc_buf);
+    pmm::freelist::free(phys_status_buf);
+
+    return ret;
+
+}
+
+xhci_trb_t __xhci_send_usb_packet(xhci_device_t* dev,xhci_usb_device_t* usbdev,xhci_usb_command_t com) {
+
+    xhci_setupstage_trb_t setup;
+    xhci_statusstage_trb_t status;
+
+    klibc::memset(&setup,0,sizeof(xhci_setupstage_trb_t));
+    klibc::memset(&status,0,sizeof(xhci_statusstage_trb_t));
+
+    klibc::memcpy(&setup.command,&com,sizeof(xhci_usb_command_t));
+
+    setup.imdata = 1;
+    setup.len = 8;
+    setup.type = TRB_SETUPSTAGE_TYPE;
+
+    status.direction = 1;
+    status.intoncomp = 1;
+    status.type = TRB_STATUSSTAGE_TYPE;
+
+    __xhci_port_ring_queue(usbdev->transfer_ring,(xhci_trb_t*)&setup);
+    __xhci_port_ring_queue(usbdev->transfer_ring,(xhci_trb_t*)&status);
+
+    __xhci_clear_event(dev);
+
+    __xhci_doorbell_id(dev,usbdev->slotid,1);
+    time::timer->sleep(5000);
+
+    xhci_trb_t ret = __xhci_event_wait(dev,TRB_TRANSFEREVENT_TYPE);
+
+    return ret;
+
+}
+
+int __xhci_get_usb_descriptor(xhci_device_t* dev,xhci_usb_device_t* usbdev,void* out,uint64_t len) {
+    xhci_usb_command_t usbcommand;
+    usbcommand.type = 0x80;
+    usbcommand.request = 6;
+    usbcommand.value = 1 << 8;
+    usbcommand.index = 0;
+    usbcommand.len = len;
+
+    xhci_trb_t ret = __xhci_send_usb_request_packet(dev,usbdev,usbcommand,out,len);
+    if(ret.ret_code != 1) {
+        log("xhci", "failed to get usb descriptior ret code is %d\r\n",ret.ret_code);
+        return 0;
+    }
+
+    return 1;
+
+}
+
+uint16_t __xhci_get_speed(xhci_device_t* dev,uint32_t portsc) {
+    (void)dev;
+    uint8_t extracted_speed = (portsc & 0x3C00) >> 10;
+    switch (extracted_speed) {
+        case XHCI_USB_SPEED_LOW_SPEED: 
+            return 8; 
+
+        case XHCI_USB_SPEED_FULL_SPEED:
+            return 64;
+
+        case XHCI_USB_SPEED_HIGH_SPEED: 
+            return 64;
+
+        case XHCI_USB_SPEED_SUPER_SPEED:
+            return 512;
+
+        case XHCI_USB_SPEED_SUPER_SPEED_PLUS:
+            return 512;
+
+        default: 
+            return 0;
+    }
+}
+
+int __xhci_reset_dev(xhci_device_t* dev, uint32_t portnum) {
+    volatile uint32_t* portsc = (volatile uint32_t*)__xhci_portsc(dev, portnum);
+    uint32_t load_portsc = *portsc;
+
+    if (!(load_portsc & (1 << 9))) {
+        *portsc = (load_portsc & 0x0E0003E0) | (1 << 9); 
+        time::timer->sleep(5000);
+        if (!(*portsc & (1 << 9))) return 0;
+    }
+
+    if (dev->usb3ports[portnum]) {
+
+        uint32_t val = *portsc & 0x0E0003E0; 
+        *portsc = val | (1 << 31);
+    } else {
+
+        uint32_t val = *portsc & 0x0E0003E0;
+        *portsc = val | (1 << 4);
+    }
+
+    uint16_t timeout = 50;
+    if (dev->usb3ports[portnum]) {
+
+        while (!(*portsc & (1 << 19))) {
+            if (timeout-- == 0) {
+                log("xhci", "Can't reset USB 3.0 device on port %d", portnum);
+                return 0;
+            }
+            time::timer->sleep(5000);
+        }
+
+        *portsc = (*portsc & 0x0E0003E0) | (1 << 19);
+    } else {
+        while (*portsc & (1 << 4)) {
+            if (timeout-- == 0) {
+                log("xhci", "Can't reset USB 2.0 device on port %d", portnum);
+                return 0;
+            }
+            time::timer->sleep(5000);
+        }
+    }
+
+    time::timer->sleep(50000);
+    return 1;
+}
+
+
+void __xhci_unicode_to_ascii(uint16_t* src,char* dest) {
+    uint16_t src_ptr = 0;
+    uint16_t dest_ptr = 0;
+
+    uint16_t* ptr = (uint16_t*)src;
+    while(ptr[src_ptr]) {
+
+        if(ptr[src_ptr] < 128)
+            dest[dest_ptr++] = ptr[src_ptr++];
+        else
+            dest[dest_ptr++] = '?';
+    }
+    dest[dest_ptr] = '\0';
+}
+
+int __xhci_read_usb_string(xhci_device_t* dev,xhci_usb_device_t* usbdev,xhci_string_descriptor_t* out,uint8_t index,uint8_t lang) {
+    xhci_usb_command_t usbcommand;
+    usbcommand.type = 0x80;
+    usbcommand.request = 6;
+    usbcommand.value = (3 << 8) | index;
+    usbcommand.index = lang;
+    usbcommand.len = sizeof(xhci_usb_descriptor_header);
+
+    xhci_trb_t ret = __xhci_send_usb_request_packet(dev,usbdev,usbcommand,out,usbcommand.len);
+    if(ret.ret_code != 1)
+        return 0;
+
+    usbcommand.len = out->head.len;
+
+    if(usbcommand.len < 8) {
+        return 1;
+    }
+
+    ret = __xhci_send_usb_request_packet(dev,usbdev,usbcommand,out,usbcommand.len);
+    if(ret.ret_code != 1)
+        return 0;
+
+    return 1;
+
+}
+
+
+
+int __xhci_read_usb_lang_string(xhci_device_t* dev,xhci_usb_device_t* usbdev,xhci_lang_descriptor_t* out) {
+    xhci_usb_command_t usbcommand;
+    usbcommand.type = 0x80;
+    usbcommand.request = 6;
+    usbcommand.value = (3 << 8);
+    usbcommand.index = 0;
+    usbcommand.len = sizeof(xhci_usb_descriptor_header);
+
+    xhci_trb_t ret = __xhci_send_usb_request_packet(dev,usbdev,usbcommand,out,usbcommand.len);
+    if(ret.ret_code != 1)
+        return 0;
+
+    usbcommand.len = out->head.len;
+
+    ret = __xhci_send_usb_request_packet(dev,usbdev,usbcommand,out,usbcommand.len);
+    if(ret.ret_code != 1)
+        return 0;
+
+    return 1;
+
+}
+
+int __xhci_print_device_info(xhci_device_t* dev,xhci_usb_device_t* usb_dev,char* product0,char* manufacter0) {
+    xhci_lang_descriptor_t lang;
+
+    int status = __xhci_read_usb_lang_string(dev,usb_dev,&lang);
+
+    if(!status)
+        return 0;
+
+    uint16_t lang0 = lang.lang[0];
+
+    xhci_string_descriptor_t product;
+    xhci_string_descriptor_t manufacter;
+
+    klibc::memset(&product,0,sizeof(product));
+    klibc::memset(&manufacter,0,sizeof(manufacter));
+
+    status = __xhci_read_usb_string(dev,usb_dev,&product,usb_dev->desc->product1,lang0);
+
+    if(!status)
+        return 0;
+
+    status = __xhci_read_usb_string(dev,usb_dev,&manufacter,usb_dev->desc->manufacter,lang0);
+
+    if(!status)
+        return 0;
+
+    klibc::memset(product0,0,256);
+    klibc::memset(manufacter0,0,256);
+
+    __xhci_unicode_to_ascii(product.str,product0);
+    __xhci_unicode_to_ascii(manufacter.str,manufacter0);
+
+    return 1;
+
+}
+
+void __xhci_setup_config(xhci_device_t* dev,xhci_usb_device_t* usbdev,uint16_t value) {
+    xhci_usb_command_t command;
+    command.type = 0;
+    command.index = 0;
+    command.len = 0;
+    command.request = 9;
+    command.value = value;
+
+    int ret = __xhci_send_usb_packet(dev,usbdev,command).ret_code;
+
+    if(ret != 1) 
+        log("xhci","Can't set configuration on port %d with val %d (ret %d)",usbdev->portnum,value,ret);
+}
+
+void __xhci_get_config_descriptor(xhci_device_t* dev,xhci_usb_device_t* usbdev, xhci_config_descriptor_t* out) {
+    xhci_usb_command_t com;
+    com.type = 0x80;
+    com.value = 2 << 8;
+    com.index = 0;
+    com.len = sizeof(xhci_usb_descriptor_header);
+    com.request = 6;
+
+    __xhci_send_usb_request_packet(dev,usbdev,com,out,sizeof(xhci_usb_descriptor_header));
+    com.len = out->head.len;
+    __xhci_send_usb_request_packet(dev,usbdev,com,out,out->head.len);
+    com.len = out->len;
+    __xhci_send_usb_request_packet(dev,usbdev,com,out,out->len);
+
+}
+
+void __xhci_get_hid_report(xhci_device_t* dev,xhci_usb_device_t* usbdev,uint8_t idx,uint8_t internum,void* data,uint32_t len) {
+    xhci_usb_command_t cmd;
+    cmd.index = internum;
+    cmd.request = 6;
+    cmd.type = 0x81;
+    cmd.len = len;
+    cmd.value = (0x22 << 8) | idx;
+    __xhci_send_usb_request_packet(dev,usbdev,cmd,data,len);
+}
+
+void __xhci_set_boot_protocol(xhci_device_t* dev, xhci_usb_device_t* usbdev, int internum) {
+    xhci_usb_command_t cmd;
+    cmd.index = internum;
+    cmd.request = 0x0B;
+    cmd.type = 0x21;
+    cmd.len = 0;
+    cmd.value = 0;
+
+    char data[4096];
+    __xhci_send_usb_request_packet(dev,usbdev,cmd,data,0);
+}
+
+int __xhci_ep_to_type(xhci_endpoint_descriptor_t* desc) {
+    uint8_t direction = (desc->endpointaddr & 0x80) ? 1 : 0;
+    uint8_t type = desc->attributes & 3;
+
+    switch (type) {
+        case 1:
+            return direction == 1 ? XHCI_ENDPOINTTYPE_ISOCHRONOUS_IN : XHCI_ENDPOINTTYPE_ISOCHRONOUS_OUT;
+        
+        case 2: 
+            return direction == 1 ? XHCI_ENDPOINTTYPE_BULK_IN : XHCI_ENDPOINTTYPE_BULK_OUT;
+        
+        case 3:
+            return direction == 1 ? XHCI_ENDPOINTTYPE_INTERRUPT_IN : XHCI_ENDPOINTTYPE_INTERRUPT_OUT;
+    }
+
+    return 0; // without it i will got UB
+}
+
+void __xhci_ask_for_help_hid(xhci_device_t* dev,xhci_usb_device_t* usbdev) {
+    
+    for(int i = 0;i < 30;i++) {
+
+        if(!usbdev->doorbell_values[i])
+            continue;
+
+        xhci_port_ring_ctx_t* transfer_ring = usbdev->ep_ctx[i];
+        xhci_normal_trb_t trb;
+        klibc::memset(&trb,0,sizeof(xhci_normal_trb_t));
+        trb.info_s.type = 1;
+        trb.info_s.ioc = 1;
+        trb.base = (uint64_t)usbdev->phys_buffers[i];
+        trb.trbtransferlen = usbdev->buffers_need_size[i];
+
+        __xhci_port_ring_queue(transfer_ring,(xhci_trb_t*)&trb);
+        __xhci_doorbell_id(dev,usbdev->slotid,usbdev->doorbell_values[i]);
+    }
+
+}
+
+const char* __xhci_usb_type_to_str(int type) {
+    switch(type) {
+        case USB_TYPE_KEYBOARD:
+            return "USB Keyboard";
+        case USB_TYPE_MOUSE:
+            return "USB Mouse";
+        default:
+            return "Unsupported";
+    };
+}
+
+int log2(unsigned int x) {
+    int result = -1;
+    while (x) {
+        x >>= 1;
+        result++;
+    }
+    return result;
+}
+
+bool usb_device_self_test(xhci_device_t* dev, xhci_usb_device_t* usbdev) {
+    xhci_normal_trb_t trb = {};
+    trb.info_s.type = 8;
+    trb.info_s.ioc = 1;
+
+    __xhci_clear_event(dev);
+
+    __xhci_port_ring_queue(usbdev->transfer_ring,(xhci_trb_t*)&trb);
+
+    arch::memory_barrier();
+
+    __xhci_doorbell_id(dev,usbdev->slotid,1);
+    time::timer->sleep(5000);
+
+    xhci_trb_t ret1 = __xhci_event_wait(dev,TRB_TRANSFEREVENT_TYPE);
+
+    if(ret1.base == 0xDEAD) {
+        log("xhci", "xhci usb device self test timeouted");
+        return false;
+    }
+
+    if(ret1.ret_code != 1) {
+        log("xhci", "xhci usb device self test is not ok (%d)",ret1.ret_code);
+        return false;
+    }
+
+    log("xhci", "xhci usb device self test is ok");
+    return true;
+}
+
+void __xhci_init_dev(xhci_device_t* dev,int portnum) {
+
+    volatile uint32_t* portsc = __xhci_portsc(dev,portnum);
+    uint32_t load_portsc = *portsc;
+    
+    if(!(load_portsc & 1)) 
+        return; 
+    
+    int status = __xhci_reset_dev(dev,portnum);
+    if(!status)
+        return;
+
+    int id = __xhci_enable_slot(dev,portnum);
+    xhci_usb_device_t* usb_dev = __xhci_alloc_dev(portnum,id);
+    //String::memset(usb_dev,0,sizeof(xhci_usb_device_t));
+
+    klibc::memset(usb_dev->doorbell_values,0,30);
+    
+    usb_dev->interface = 0;
+
+    uint64_t addr = pmm::freelist::alloc_4k();
+    __xhci_create_dcbaa(dev,usb_dev->slotid,addr);
+
+    uint32_t* hccparams = (uint32_t*)(&dev->cap->hccparams1);
+    char context_size = ((hccparams1_t*)hccparams)->contextsize;
+
+
+    if(!context_size)
+        dev->dcbaa[id] += 64;
+    else
+        dev->dcbaa[id] += 128; 
+
+    if(!context_size)
+        usb_dev->_is64byte = 0;
+    else 
+        usb_dev->_is64byte = 1;
+
+    usb_dev->dev = dev;
+
+    load_portsc = *portsc; // load it again
+
+    uint16_t speed = __xhci_get_speed(dev,load_portsc);
+
+    const char* speed_to_str[7] = {
+        "(0 MB/s - USB ?)",
+        "(12 MB/s - USB 2.0)",
+        "(1.5 Mb/s - USB 2.0)",
+        "(480 Mb/s - USB 2.0)",
+        "(5 Gb/s - USB3.0)",
+        "(10 Gb/s - USB 3.1)"
+    };
+
+    assert((addr % 64) == 0, "addr is not aligned (kernel bug)");
+    assert((usb_dev->transfer_ring->phys % 16) == 0, "sfaf");
+
+    if(!context_size) {
+        xhci_input_ctx_t* input_ctx = (xhci_input_ctx_t*)(addr + etc::hhdm());
+
+        klibc::memset(input_ctx,0,4096);
+        input_ctx->input_ctx.A = (1 << 0) | (1 << 1);
+        input_ctx->slot.contextentries = 1;
+        input_ctx->slot.speed = (load_portsc & 0x3C00) >> 10;
+        input_ctx->slot.porthubnum = portnum + 1;
+        input_ctx->ep0.endpointtype = 4;
+        input_ctx->ep0.cerr = 3;
+        input_ctx->ep0.maxpacketsize = speed;
+        input_ctx->ep0.base = usb_dev->transfer_ring->phys | usb_dev->transfer_ring->cycle;
+        input_ctx->ep0.averagetrblen = 0x8;
+        usb_dev->input_ctx = (xhci_input_ctx_t*)input_ctx;
+
+    } else {
+        xhci_input_ctx64_t* input_ctx = (xhci_input_ctx64_t*)(addr  + etc::hhdm());
+
+        klibc::memset(input_ctx,0,4096);
+        input_ctx->input_ctx.A = (1 << 0) | (1 << 1);
+        input_ctx->slot.contextentries = 1;
+        input_ctx->slot.speed = (load_portsc & 0x3C00) >> 10;
+        input_ctx->slot.porthubnum = portnum + 1;
+        input_ctx->ep0.endpointtype = 4;
+        input_ctx->ep0.cerr = 3;
+        input_ctx->ep0.maxpacketsize = speed;
+        input_ctx->ep0.base = usb_dev->transfer_ring->phys | usb_dev->transfer_ring->cycle;
+        input_ctx->ep0.averagetrblen = 8;
+
+        usb_dev->input_ctx = (xhci_input_ctx_t*)input_ctx;
+
+    }
+
+    int status_addr = __xhci_set_addr(dev,addr,id,0);
+
+    if(status_addr == 0) {
+        log("xhci","zero ret from xhci_set_addr (broken xhci ?)");
+    } else if(status_addr != 1) 
+        return;
+
+    // bool self_test = usb_device_self_test(dev, usb_dev);
+    // if(self_test == false)
+    //     return;
+
+    xhci_usb_descriptor_t* descriptor = (xhci_usb_descriptor_t*)klibc::malloc(4096);
+    int status2 = __xhci_get_usb_descriptor(dev,usb_dev,(void*)descriptor,8);
+
+    if(!status2)
+        return;
+
+    ((xhci_input_ctx_t*)(dev->dcbaa[id]  + etc::hhdm()))->ep0.maxpacketsize = descriptor->maxpacketsize;
+
+    status2 = __xhci_get_usb_descriptor(dev,usb_dev,(void*)descriptor,descriptor->head.len);
+    if(!status2)
+        return;
+    usb_dev->desc = descriptor;
+
+    usb_dev->type = 0;
+
+    if(!speed) {
+        log("xhci","Broken USB Device/Firmware, can't continue work. skipping");
+        return; 
+    }
+
+    char product[1024];
+    char manufacter[1024];
+
+    klibc::memset(product,0,1024);
+    klibc::memset(manufacter,0,1024);
+
+    int status4 = __xhci_print_device_info(dev,usb_dev,product,manufacter);
+    if(!status4)
+        return;
+
+    xhci_config_descriptor_t* cfg = (xhci_config_descriptor_t*)klibc::malloc(4096);
+    usb_dev->config = cfg;
+
+    __xhci_get_config_descriptor(dev,usb_dev,cfg);
+
+    __xhci_setup_config(dev,usb_dev,cfg->configval);
+
+    if(!context_size) {
+        usb_dev->input_ctx->input_ctx.A = (1 << 0);
+    } else {
+        xhci_input_ctx64_t* input = (xhci_input_ctx64_t*)(addr + etc::hhdm());
+        input->input_ctx.A = (1 << 0);
+    }
+
+    uint16_t i = 0;
+    while(i < (cfg->len - cfg->head.len)) {
+        xhci_usb_descriptor_header* current = (xhci_usb_descriptor_header*)(&cfg->data[i]);
+        //INFO("Found descriptor with type %d (0x%p) and len %d (i %d)!",current->type,current->type,current->len,i);
+        
+        xhci_interface_t* inter = new xhci_interface_t;
+        inter->type = current->type;
+        inter->data = current;
+        klibc::memset(inter,0,sizeof(xhci_interface_t));
+        if(!usb_dev->interface) 
+            usb_dev->interface = inter;
+        else {
+            inter->next = usb_dev->interface;
+            usb_dev->interface = inter;
+        }
+
+        switch(current->type) {
+
+            case 0x04: {
+                xhci_interface_descriptor_t* interface = (xhci_interface_descriptor_t*)current;
+                //INFO("interface interclass %d, interface intersubclass %d, protocol %d",interface->interclass,interface->intersubclass,interface->protocol);
+                if(interface->interclass == 3 && interface->intersubclass == 1 && !usb_dev->type) {
+                    switch(interface->protocol) {
+                        case 2: {
+                            usb_dev->type = USB_TYPE_MOUSE;
+                            break;
+                        }
+
+                        case 1: {
+                            usb_dev->type = USB_TYPE_KEYBOARD;
+                            break;
+                        }
+                    }
+                }
+                break;
+            }
+
+            case 0x21: {
+                xhci_hid_descriptor_t* hid = (xhci_hid_descriptor_t*)current;
+                for(int i = 0; i < hid->numdesc;i++) {
+                    xhci_hid_sub_desc* desc = &hid->desc[i];
+                    if(desc->desctype == 0x22) {
+                        
+                        xhci_interface_t* need_interface = usb_dev->interface;
+                        while(need_interface) {
+                            if(need_interface->type == 0x04)
+                                break;
+                            need_interface = need_interface->next;
+                        }
+                        
+                        if(!need_interface)
+                            continue;
+
+                        need_interface->buffer = klibc::malloc(desc->desclen + 1);
+                        klibc::memset(need_interface->buffer,0,desc->desclen + 1);
+                        need_interface->len = desc->desclen;
+
+                        xhci_interface_descriptor_t* interface = (xhci_interface_descriptor_t*)need_interface;
+
+                        __xhci_set_boot_protocol(dev,usb_dev,interface->num);
+                        __xhci_get_hid_report(dev,usb_dev,0,interface->num,need_interface->buffer,need_interface->len);
+
+                    }
+                }
+                break;
+            }
+            // __xhci_setup_port_ring(256,slotid);
+            case 0x05: {
+                xhci_endpoint_descriptor_t* ep = (xhci_endpoint_descriptor_t*)current;
+
+                int idx = ((ep->endpointaddr >> 7) & 1) + ((ep->endpointaddr & 0x0F) << 1);
+                usb_dev->main_ep = idx;
+                idx -= 2;
+                usb_dev->ep_ctx[idx] = __xhci_setup_port_ring(256,usb_dev->slotid);
+                
+                usb_dev->buffers_need_size[idx] = ep->maxpacketsize;
+
+                usb_dev->phys_buffers[idx] = pmm::freelist::alloc_4k();
+                usb_dev->buffers[idx] = (uint8_t*)(usb_dev->phys_buffers[idx]  + etc::hhdm());
+                usb_dev->doorbell_values[idx] = idx + 2;
+
+                if(!context_size) { 
+                    xhci_input_ctx_t* input = (xhci_input_ctx_t*)(addr  + etc::hhdm());
+                    xhci_endpoint_ctx_t* ep1 = &input->ep[idx];
+                    klibc::memset(ep1,0,sizeof(xhci_endpoint_ctx_t));
+                    usb_dev->input_ctx->input_ctx.A |= (1 << (idx + 2));
+                    
+                    input->slot.contextentries += 2;
+                    ep1->state = 0;
+                    ep1->endpointtype = __xhci_ep_to_type(ep);
+                    ep1->maxpacketsize = ep->maxpacketsize;
+                    ep1->some_shit_with_long_name_lo = ep->maxpacketsize;
+                    ep1->cerr = 3;
+                    ep1->maxburstsize = 0;
+                    ep1->averagetrblen = ep->maxpacketsize;
+                    ep1->base = usb_dev->ep_ctx[idx]->phys | usb_dev->ep_ctx[idx]->cycle;
+                    uint8_t port_speed = (load_portsc & 0x3C00) >> 10;
+                    uint8_t interval = ep->interval;
+                    uint8_t epty = ep1->endpointtype;
+
+                    /* thanks n00byedge for tips */
+
+                    if(port_speed == XHCI_USB_SPEED_HIGH_SPEED || port_speed == XHCI_USB_SPEED_SUPER_SPEED || port_speed == XHCI_USB_SPEED_SUPER_SPEED_PLUS)
+                        ep1->interval = interval - 1;
+                    else if(port_speed == XHCI_USB_SPEED_FULL_SPEED && (epty == XHCI_ENDPOINTTYPE_ISOCHRONOUS_IN || epty == XHCI_ENDPOINTTYPE_ISOCHRONOUS_OUT))
+                        ep1->interval = interval + 2;
+                    else if((port_speed == XHCI_USB_SPEED_FULL_SPEED || port_speed == XHCI_USB_SPEED_LOW_SPEED) && (epty == XHCI_ENDPOINTTYPE_INTERRUPT_IN || epty == XHCI_ENDPOINTTYPE_INTERRUPT_OUT)) {
+                        ep1->interval = log2(interval) + 4;
+                    }
+
+                    
+                } else {
+                    xhci_input_ctx64_t* input = (xhci_input_ctx64_t*)(addr  + etc::hhdm());
+                    xhci_endpoint_ctx_t* ep1 = (xhci_endpoint_ctx_t*)(&input->ep[idx]);
+                    klibc::memset(ep1,0,sizeof(xhci_endpoint_ctx_t));
+                    
+                    input->slot.contextentries += 2;
+                    input->input_ctx.A |= (1 << (idx + 2));
+                    ep1->state = 0;
+                    ep1->endpointtype = __xhci_ep_to_type(ep);
+                    ep1->maxpacketsize = ep->maxpacketsize;
+                    ep1->some_shit_with_long_name_lo = ep->maxpacketsize;
+                    ep1->cerr = 3;
+                    ep1->maxburstsize = 0;
+                    ep1->averagetrblen = ep->maxpacketsize;
+                    ep1->base = (uint64_t)usb_dev->ep_ctx[idx]->phys | usb_dev->ep_ctx[idx]->cycle;
+                    uint8_t port_speed = (load_portsc & 0x3C00) >> 10;
+                    uint8_t interval = ep->interval;
+                    uint8_t epty = ep1->endpointtype;
+
+                    if(port_speed == XHCI_USB_SPEED_HIGH_SPEED || port_speed == XHCI_USB_SPEED_SUPER_SPEED || port_speed == XHCI_USB_SPEED_SUPER_SPEED_PLUS)
+                        ep1->interval = interval - 1;
+                    else if(port_speed == XHCI_USB_SPEED_FULL_SPEED && (epty == XHCI_ENDPOINTTYPE_ISOCHRONOUS_IN || epty == XHCI_ENDPOINTTYPE_ISOCHRONOUS_OUT))
+                        ep1->interval = interval + 2;
+                    else if((port_speed == XHCI_USB_SPEED_FULL_SPEED || port_speed == XHCI_USB_SPEED_LOW_SPEED) && (epty == XHCI_ENDPOINTTYPE_INTERRUPT_IN || epty == XHCI_ENDPOINTTYPE_INTERRUPT_OUT)) {
+                        ep1->interval = log2(interval) + 4;
+                    }
+                }
+
+                break;
+            }
+        }
+        
+        i += current->len;
+    }
+
+    xhci_configure_endpoints_trb_t ep_trb;
+    klibc::memset(&ep_trb,0,sizeof(xhci_trb_t));
+    
+    ep_trb.info_s.type = 12;
+    ep_trb.base = addr;
+    ep_trb.info_s.slot = usb_dev->slotid;
+
+    __xhci_clear_event(dev);
+
+    __xhci_command_ring_queue(dev,dev->com_ring,(xhci_trb_t*)&ep_trb);
+    __xhci_doorbell(dev,0);
+    time::timer->sleep(5000);
+
+    xhci_trb_t ret = __xhci_event_wait(dev,TRB_COMMANDCOMPLETIONEVENT_TYPE);
+
+    if(ret.ret_code > 1) {
+        log("xhci","Can't configure endpoints for port %d (ret %d base %p), context_size: %d, given addr %p",portnum,ret.ret_code,ret.base,usb_dev->_is64byte,ep_trb.base);
+        return;
+    } else if(ret.ret_code == 0) {
+        log("xhci","Endpoint configure TRB ret_code is 0 (it shouldn't)");
+    }
+    
+    __xhci_ask_for_help_hid(dev,usb_dev);
+
+    time::timer->sleep(1000);
+
+    log("xhci","Found USB%s Device %s (%d, %d, %d) %s %s on port %d and slot %d",dev->usb3ports[portnum] == 1 ? "3.0" : "2.0",((load_portsc & 0x3C00) >> 10) < 7 ? speed_to_str[(load_portsc & 0x3C00) >> 10] : "Broken (0 MB/S - USB ?)",(load_portsc & 0x3C00) >> 10,speed,descriptor->maxpacketsize,manufacter,product,portnum,usb_dev->slotid);
+    
+    char buffer[2048];
+    klibc::memset(buffer,0,2048);
+    klibc::__printfbuf(buffer,2048,"%s %s",manufacter, product);
+    
+    usb_dev->evdev_num = evdev::create(buffer,usb_dev->type == USB_TYPE_KEYBOARD ? EVDEV_TYPE_KEYBOARD : EVDEV_TYPE_MOUSE);
+
+}
+
+void __xhci_init_ports(xhci_device_t* dev) {
+    for(std::uint32_t i = 0;i < dev->max_ports;i++) {
+        __xhci_init_dev(dev,i);
+    }
+}
+
+void __xhci_iterate_usb_ports(xhci_device_t* dev) {
+
+    volatile uint32_t* cap = (volatile uint32_t*)(dev->xhci_virt_base + dev->cap->hccparams1.xECP * 4);
+    
+    xhci_ext_cap_t load_cap;
+    load_cap.full = *cap;
+    //INFO("0x%p",cap);
+    while(1) {
+        //INFO("Found cap with id %d",load_cap.id);
+
+        if(load_cap.id == 2) {
+
+            xhci_usb_cap_t usb_cap;
+
+            usb_cap.firsthalf = cap[0];
+            usb_cap.name = cap[1];
+            usb_cap.thirdhalf = cap[2];
+            usb_cap.fourhalf = cap[3];
+
+            if(usb_cap.major == 3) {
+                for(uint8_t i = usb_cap.portoffset - 1;i <= (usb_cap.portoffset - 1) + usb_cap.portcount - 1;i++) {
+                    dev->usb3ports[i] = 1;
+                    //log("xhci","Found USB 3.0 Port %d !",i);
+                }
+            } else {
+                for(uint8_t i = usb_cap.portoffset - 1;i <= (usb_cap.portoffset - 1) + usb_cap.portcount - 1;i++) {
+                    dev->usb3ports[i] = 0;
+                    //log("xhci","Found USB 2.0 Port %d !",i);
+                }
+            }
+
+        } else if(load_cap.id == 1) {
+            
+            log("xhci","disabling xhci hand off");
+            *((volatile uint32_t*)((uint64_t)cap + 4)) &= ~((1 << 0) | (1 << 13) | (1 << 4) | (1 << 14) | (1 << 15));
+            *cap |= (1 << 24);
+
+            time::timer->sleep(500 * 1000);
+
+        }
+
+        
+
+        if(!load_cap.nextcap)
+            break;
+
+
+        cap = (uint32_t*)((uint64_t)cap + (load_cap.nextcap * 4));
+        load_cap.full = *cap;
+
+    }
+}
+
+xhci_hid_driver_t* hid_drv = 0;
+
+void xhci_hid_register(void (*func)(xhci_usb_device_t* usbdev,xhci_done_trb_t* trb),int type) {
+    xhci_hid_driver_t* drv = new xhci_hid_driver_t;
+    drv->func = func;
+    drv->type = type;
+
+    if(!hid_drv)
+        hid_drv = drv;
+    else {
+        drv->next = hid_drv;
+        hid_drv = drv;
+    }
+}
+
+void __xhci_process_fetch(xhci_device_t* dev) {
+    xhci_event_ring_ctx_t* father = dev->event_ring;
+    xhci_trb_t* buffer[1024];
+
+    while(1) {
+        //Paging::EnableKernel();  
+        int count = 0;
+        klibc::memset(buffer,0,sizeof(xhci_trb_t*) * 1024);
+        if(get_trb(father,father->queue).info_s.cycle == father->cycle)
+            count = __xhci_event_receive(dev,father,buffer);
+        
+        if(!count) {
+            process::yield();
+        }
+
+        if(count) {
+            xhci_trb_t* current = 0;
+            for(int i = 0;i < count;i++) {
+                current = buffer[i];
+                switch(current->info_s.type) {
+                    case TRB_TRANSFEREVENT_TYPE: {
+                        xhci_usb_device_t* usbdev = usbdevs;
+                        xhci_done_trb_t* trb = (xhci_done_trb_t*)current;
+                        while(usbdev) {
+                            if(usbdev->dev == dev) {
+                                if(usbdev->slotid == trb->info_s.slot) {
+                                    xhci_hid_driver_t* drv = hid_drv;
+                                    while(drv) {
+                                        if((std::uint32_t)drv->type == usbdev->type)
+                                            drv->func(usbdev,trb);
+                                        drv = drv->next;
+                                    }
+                                    __xhci_ask_for_help_hid(dev,usbdev);
+                                }
+                            }
+                            usbdev = usbdev->next;
+                        }
+                        break;
+                    }
+                    default: {
+                        log("xhci","xhci unsupported trb: %d",current->info_s.type);
+                    }
+                }
+            }
+        }
+        
+    }
+}
+
+void xhci_device(std::uint64_t addr) {
+
+    xhci_device_t* dev = (xhci_device_t*)klibc::malloc(4096);
+    klibc::memset(dev,0,4096);
+
+    dev->xhci_phys_base = addr;
+    dev->xhci_virt_base = addr + etc::hhdm();
+    paging::map_range(gobject::kernel_root,addr,addr + etc::hhdm(), PAGE_SIZE,PAGING_RW | PAGING_PRESENT | PAGING_NC); // map page
+
+    dev->cap = (xhci_cap_regs_t*)dev->xhci_virt_base;
+    dev->op = (xhci_op_regs_t*)(dev->xhci_virt_base + dev->cap->caplength);
+    dev->runtime = (xhci_runtime_regs_t*)(dev->xhci_virt_base + dev->cap->rtsoff);
+    dev->doorbell = (uint32_t*)(dev->xhci_virt_base + dev->cap->dboff);
+
+    uint32_t hcsparams1 = *(uint32_t*)(&dev->cap->hcsparams1);
+
+    dev->max_ports = ((volatile hcsparams1_t*)&hcsparams1)->maxports;
+    //std::uint32_t max_slots = ((volatile hcsparams1_t*)&hcsparams1)->maxslots;
+
+    paging::map_range(gobject::kernel_root,addr,addr + etc::hhdm(), PAGE_SIZE * 16,PAGING_RW | PAGING_PRESENT | PAGING_NC); // map full
+
+    __xhci_put_new_device(dev);
+    if(dev->op->usbcmd & XHCI_USBCMD_RS)  { // wtf how does it running
+        uint16_t timeout = XHCI_RESET_TIMEOUT;
+        //INFO("XHCI is already running, stopping it.");
+        dev->op->usbcmd &= ~(XHCI_USBCMD_RS);
+        time::timer->sleep(20 * 1000);
+        while(!(dev->op->usbsts & (1 << 0))) {
+            if(!timeout) {
+                log("xhci", "cant reset xhci device :(");
+                return;
+            }
+            time::timer->sleep(20 * 1000);
+            timeout = timeout - 1;
+        }
+    }
+
+    uint16_t hci_version = ((*(volatile std::uint32_t*)dev->cap) >> 16) & 0xFFFF;
+
+    uint8_t major = (hci_version >> 8) & 0xFF;
+    uint8_t minor = hci_version & 0xFF;
+
+    log("xhci", "hciversion: %d.%d (0x%04x)", major, minor, hci_version);
+
+    //DEBUG("Resetting XHCI device");
+    __xhci_reset(dev);
+
+    dev->calculated_scratchpad_count = (uint16_t)((dev->cap->hcsparams2.max_scratchpad_hi << 5) | dev->cap->hcsparams2.max_scratchpad_lo);
+
+    //INFO("Configuring XHCI OPER");
+    __xhci_setup_op(dev); 
+    //INFO("Configuring XHCI Runtime");
+    __xhci_setup_run(dev);
+    //INFO("Starting XHCI Device");
+    __xhci_enable(dev);
+    //INFO("Iterating USB Ports");
+    __xhci_iterate_usb_ports(dev);
+    //INFO("Configuring XHCI Ports");
+
+    log("xhci", "iterating ports");
+    __xhci_init_ports(dev);
+
+    // int pid = fork();
+    // if(pid == 0)
+    //     __xhci_process_fetch(dev);
+
+    process::kthread((void (*)(void*))__xhci_process_fetch,(void*)dev); 
+    log("xhci", "xhci initializied");
+}
+
+#if defined(__x86_64__)
+void __xhci_pci_device(pci_t pci_dev,uint8_t a, uint8_t b,uint8_t c) {
+    if(pci_dev.progIF != 0x30) {
+        //INFO("Current USB device with progIF 0x%p is not XHCI !",pci_dev.progIF);
+        return;
+    } 
+
+    uint32_t usb3_ports = x86_64::pci::pci_read_config32(a,b,c,0xDC);
+    x86_64::pci::pci_write_config32(a,b,c,0xD8,usb3_ports);
+
+	auto usb2_ports = x86_64::pci::pci_read_config32(a,b,c,0xD4);
+	x86_64::pci::pci_write_config32(a,b,c,0xD0,usb2_ports);
+
+    uint64_t addr = pci_dev.bar0 & ~4; // clear upper 2 bits
+    addr |= ((uint64_t)pci_dev.bar1 << 32);
+
+    std::uint32_t cmd = x86_64::pci::pci_read_config32(a,b,c,0x4);
+    log("xhci_pci", "bus mastering %d, memory access %d",(cmd & (1 << 2)) ? 1 : 0, (cmd & (1 << 1)) ? 1 : 0);
+    cmd |= 1 << 2;
+    cmd |= 1 << 1;
+    x86_64::pci::pci_write_config32(a,b,c,0x4,cmd);
+
+    xhci_device(addr);
+}
+#endif
+
+char hid_to_ps2_layout[0x48];
+
+int input0_fd = 0;
+int mouse_fd = 0;
+
+void hid_layout_init() {
+    hid_to_ps2_layout[0x04] = 0x1E;
+    hid_to_ps2_layout[0x05] = 0x30;
+    hid_to_ps2_layout[0x06] = 0x2E;
+    hid_to_ps2_layout[0x07] = 0x20;
+    hid_to_ps2_layout[0x08] = 0x12;
+    hid_to_ps2_layout[0x09] = 0x21;
+    hid_to_ps2_layout[0x0A] = 0x22;
+    hid_to_ps2_layout[0x0B] = 0x23;
+    hid_to_ps2_layout[0x0C] = 0x17;
+    hid_to_ps2_layout[0x0D] = 0x24;
+    hid_to_ps2_layout[0x0E] = 0x25;
+    hid_to_ps2_layout[0x0F] = 0x26;
+    hid_to_ps2_layout[0x10] = 0x32;
+    hid_to_ps2_layout[0x11] = 0x31;
+    hid_to_ps2_layout[0x12] = 0x18;
+    hid_to_ps2_layout[0x13] = 0x19;
+    hid_to_ps2_layout[0x14] = 0x10;
+    hid_to_ps2_layout[0x15] = 0x13;
+    hid_to_ps2_layout[0x16] = 0x1F;
+    hid_to_ps2_layout[0x17] = 0x14;
+    hid_to_ps2_layout[0x18] = 0x16;
+    hid_to_ps2_layout[0x19] = 0x2F;
+    hid_to_ps2_layout[0x1A] = 0x11;
+    hid_to_ps2_layout[0x1B] = 0x2D;
+    hid_to_ps2_layout[0x1C] = 0x15;
+    hid_to_ps2_layout[0x1D] = 0x2C;
+    hid_to_ps2_layout[0x1E] = 0x02;
+    hid_to_ps2_layout[0x1F] = 0x03;
+    hid_to_ps2_layout[0x20] = 0x04;
+    hid_to_ps2_layout[0x21] = 0x05;
+    hid_to_ps2_layout[0x22] = 0x06;
+    hid_to_ps2_layout[0x23] = 0x07;
+    hid_to_ps2_layout[0x24] = 0x08;
+    hid_to_ps2_layout[0x25] = 0x09;
+    hid_to_ps2_layout[0x26] = 0x0A;
+    hid_to_ps2_layout[0x27] = 0x0B;
+    hid_to_ps2_layout[0x28] = 0x1C;
+    hid_to_ps2_layout[0x29] = 0x01;
+    hid_to_ps2_layout[0x2A] = 0x0E;
+    hid_to_ps2_layout[0x2B] = 0x0F;
+    hid_to_ps2_layout[0x2C] = 0x39;
+    hid_to_ps2_layout[0x2D] = 0x0C;
+    hid_to_ps2_layout[0x2E] = 0x0D;
+    hid_to_ps2_layout[0x2F] = 0x1A;
+    hid_to_ps2_layout[0x30] = 0x1B;
+    hid_to_ps2_layout[0x31] = 0x2B;
+    hid_to_ps2_layout[0x32] = 0x2B;
+    hid_to_ps2_layout[0x33] = 0x27;
+    hid_to_ps2_layout[0x34] = 0x28;
+    hid_to_ps2_layout[0x35] = 0x29;
+    hid_to_ps2_layout[0x36] = 0x33;
+    hid_to_ps2_layout[0x37] = 0x34;
+    hid_to_ps2_layout[0x38] = 0x35;
+    hid_to_ps2_layout[0x39] = 0x3A;
+    hid_to_ps2_layout[0x3B] = 0x3C;
+    hid_to_ps2_layout[0x3C] = 0x3D;
+    hid_to_ps2_layout[0x3D] = 0x3E;
+    hid_to_ps2_layout[0x3E] = 0x3F;
+    hid_to_ps2_layout[0x3F] = 0x40;
+    hid_to_ps2_layout[0x40] = 0x41;
+    hid_to_ps2_layout[0x41] = 0x42;
+    hid_to_ps2_layout[0x42] = 0x43;
+    hid_to_ps2_layout[0x43] = 0x44;
+    hid_to_ps2_layout[0x44] = 0x57;
+    hid_to_ps2_layout[0x45] = 0x58;
+    hid_to_ps2_layout[0x46] = 0x00;
+    hid_to_ps2_layout[0x47] = 0x46;
+}
+
+void input_send(int num, uint8_t key) {
+
+    std::uint64_t current_nano = time::timer->current_nano();
+
+    input_event ev;
+    ev.time.tv_sec = current_nano / 1000000000;
+    ev.time.tv_usec = (current_nano & 1000000000) / 1000;
+    ev.type = 1;
+    ev.code = key & ~(1 << 7);
+    ev.value = (key & (1 << 7)) ? 0 : 1;
+    evdev::submit(num,ev);
+}
+
+uint8_t hid_mods_to_ps2[8] = {
+    0x1D,
+    0x2A, 
+    0x38, 
+    0x5B, 
+    0x1D,
+    0x36, 
+    0x38,
+    0x5C  
+};
+
+void __usbkeyboard_handler(xhci_usb_device_t* usbdev, xhci_done_trb_t* trb) {
+    uint8_t* data = usbdev->buffers[trb->info_s.ep_id - 2];
+    uint8_t mods = data[0];
+    uint8_t prev_mods = usbdev->add_buffer[0];
+
+    for (int i = 0; i < 8; i++) {
+        uint8_t mask = 1 << i;
+        if ((mods & mask) && !(prev_mods & mask)) {
+            if (i >= 4) input_send(usbdev->evdev_num, 0xE0);
+            input_send(usbdev->evdev_num, hid_mods_to_ps2[i]);
+        } else if (!(mods & mask) && (prev_mods & mask)) {
+            if (i >= 4) input_send(usbdev->evdev_num, 0xE0); 
+            input_send(usbdev->evdev_num, hid_mods_to_ps2[i] | 0x80);
+        }
+    }
+
+    for (int i = 2; i < 8; i++) {
+        int isPressed = 0;
+        for (int j = 2; j < 8; j++) {
+            if (usbdev->add_buffer[j] == data[i]) {
+                isPressed = 1;
+                break;
+            }
+        }
+        if (!isPressed && data[i] != 0) {
+            if (data[i] < 0x47) {
+                input_send(usbdev->evdev_num, hid_to_ps2_layout[data[i]]);
+            } else if(data[i] == 0x4F) {
+                input_send(usbdev->evdev_num, 0xE0);
+                input_send(usbdev->evdev_num, 0x4D); 
+            } else if(data[i] == 0x50) {
+                input_send(usbdev->evdev_num, 0xE0);
+                input_send(usbdev->evdev_num, 0x4B); 
+            } else if(data[i] == 0x51) {
+                input_send(usbdev->evdev_num, 0xE0);
+                input_send(usbdev->evdev_num, 0x50); 
+            } else if(data[i] == 0x52) {
+                input_send(usbdev->evdev_num, 0xE0);
+                input_send(usbdev->evdev_num, 0x48); 
+            }
+        }
+    }
+
+    for (int i = 2; i < 8; i++) {
+        int isStillPressed = 0;
+        for (int j = 2; j < 8; j++) {
+            if (usbdev->add_buffer[i] == data[j]) {
+                isStillPressed = 1;
+                break;
+            }
+        }
+        if (!isStillPressed && usbdev->add_buffer[i] != 0) {
+            input_send(usbdev->evdev_num, hid_to_ps2_layout[usbdev->add_buffer[i]] | 0x80);
+        } else if(usbdev->add_buffer[i] == 0x4F) {
+                input_send(usbdev->evdev_num, 0xE0 | 0x80);
+                input_send(usbdev->evdev_num, 0x4D | 0x80); 
+            } else if(usbdev->add_buffer[i] == 0x50) {
+                input_send(usbdev->evdev_num, 0xE0 | 0x80);
+                input_send(usbdev->evdev_num, 0x4B | 0x80); 
+            } else if(usbdev->add_buffer[i] == 0x51) {
+                input_send(usbdev->evdev_num, 0xE0 | 0x80);
+                input_send(usbdev->evdev_num, 0x50 | 0x80); 
+            } else if(usbdev->add_buffer[i] == 0x52) {
+                input_send(usbdev->evdev_num, 0xE0 | 0x80);
+                input_send(usbdev->evdev_num, 0x48 | 0x80); 
+            }
+    }
+
+    klibc::memcpy(usbdev->add_buffer, data, 8);
+}
+
+
+#define MOUSE_LB (1 << 0)
+#define MOUSE_RB (1 << 1)
+#define MOUSE_MB (1 << 2)
+#define MOUSE_B4 (1 << 3)
+#define MOUSE_B5 (1 << 4)
+
+/*
+input0_fd = open("/dev/masterps2keyboard",O_RDWR);
+    mouse_fd = open("/dev/mastermouse",O_RDWR);
+*/
+
+#define REL_X			0x00
+#define REL_Y			0x01
+#define REL_Z			0x02
+#define REL_RX			0x03
+#define REL_RY			0x04
+#define REL_RZ			0x05
+#define REL_HWHEEL		0x06
+#define REL_DIAL		0x07
+#define REL_WHEEL		0x08
+#define REL_MISC		0x09
+
+void __usbmouse_handler(xhci_usb_device_t* usbdev, xhci_done_trb_t* trb) {
+    uint8_t* data = usbdev->buffers[trb->info_s.ep_id - 2];
+    
+    mouse_packet_t packet;
+
+    packet.buttons = 0;
+
+    packet.buttons |= (data[0] & (1 << 0)) ? MOUSE_LB : 0;
+    packet.buttons |= (data[0] & (1 << 1)) ? MOUSE_RB : 0;
+    packet.buttons |= (data[0] & (1 << 2)) ? MOUSE_MB : 0;
+
+    packet.x = data[1];
+    packet.y = -data[2];
+    packet.z = 0; // todo: figure out how to get mouse scroll wheel data
+
+    std::uint64_t current_nano = time::timer->current_nano();
+    input_event ev;
+    ev.time.tv_sec = current_nano / 1000000000;
+    ev.time.tv_usec = (current_nano & 1000000000) / 1000;
+    if(packet.x) {
+        ev.code = REL_X;
+        ev.type = 2;
+        ev.value = (packet.x & 0x80) ? (packet.x | 0xFFFFFF00) : packet.x;
+        evdev::submit(usbdev->evdev_num,ev);
+    }
+
+    if(packet.y) {
+        ev.code = REL_Y;
+        ev.type = 2;
+        ev.value = (packet.y & 0x80) ? (packet.y | 0xFFFFFF00) : packet.y;
+        evdev::submit(usbdev->evdev_num,ev);
+    }
+
+    if(packet.z) {
+        ev.code = REL_Z;
+        ev.type = 2;
+        ev.value = (packet.z & 0x80) ? (packet.z | 0xFFFFFF00) : packet.z;
+        evdev::submit(usbdev->evdev_num,ev);
+    }
+
+    if((packet.buttons & MOUSE_LB) && !(usbdev->last_pack.buttons & MOUSE_LB)) {
+        ev.code = 272;
+        ev.type = 1;
+        ev.value = 1;
+        evdev::submit(usbdev->evdev_num,ev);
+    } else if(!(packet.buttons & MOUSE_LB) && (usbdev->last_pack.buttons & MOUSE_LB)) {
+        ev.code = 272;
+        ev.type = 1;
+        ev.value = 0;
+        evdev::submit(usbdev->evdev_num,ev);
+    }
+
+    if((packet.buttons & MOUSE_RB) && !(usbdev->last_pack.buttons & MOUSE_RB)) {
+        ev.code = 273;
+        ev.type = 1;
+        ev.value = 1;
+        evdev::submit(usbdev->evdev_num,ev);
+    } else if(!(packet.buttons & MOUSE_RB) && (usbdev->last_pack.buttons & MOUSE_RB)) {
+        ev.code = 273;
+        ev.type = 1;
+        ev.value = 0;
+        evdev::submit(usbdev->evdev_num,ev);
+    }
+
+    if((packet.buttons & MOUSE_MB) && !(usbdev->last_pack.buttons & MOUSE_MB)) {
+        ev.code = 274;
+        ev.type = 1;
+        ev.value = 1;
+        evdev::submit(usbdev->evdev_num,ev);
+    } else if(!(packet.buttons & MOUSE_MB) && (usbdev->last_pack.buttons & MOUSE_MB)) {
+        ev.code = 274;
+        ev.type = 1;
+        ev.value = 0;
+        evdev::submit(usbdev->evdev_num,ev);
+    }
+
+    usbdev->last_pack = packet;
+
+    time::timer->sleep(1000); // actually hid wants this only after 1 ms
+
+}
+
+int xhci_init() { 
+
+    xhci_hid_register(__usbkeyboard_handler,USB_TYPE_KEYBOARD);
+    xhci_hid_register(__usbmouse_handler,USB_TYPE_MOUSE);
+
+    hid_layout_init();
+
+#if defined(__x86_64__)
+    x86_64::pci::reg(__xhci_pci_device,0x0C,0x03);
+#endif
+    return 0;
+}
\ No newline at end of file
diff --git a/kernel/src/drivers/xhci.hpp b/kernel/src/drivers/xhci.hpp
new file mode 100644
index 0000000..c76a3c9
--- /dev/null
+++ b/kernel/src/drivers/xhci.hpp
@@ -0,0 +1,707 @@
+#include <cstdint>
+
+#pragma once
+
+#define XHCI_RESET_TIMEOUT 1000
+
+typedef struct {
+    unsigned char buttons;
+    unsigned char x;
+    unsigned char y;
+    unsigned char z;
+} __attribute__((packed)) mouse_packet_t;
+
+typedef struct {
+    uint32_t maxslots : 8;
+    uint32_t maxintrs : 11;
+    uint32_t reserved1 : 5;
+    uint32_t maxports : 8;
+} __attribute__((packed)) hcsparams1_t;
+
+typedef struct {
+    uint32_t ist : 4;
+    uint32_t erstmax : 4;
+    uint32_t reserved1 : 13;
+    uint32_t max_scratchpad_hi : 5;
+    uint32_t spr : 1;
+    uint32_t max_scratchpad_lo : 5;
+} __attribute__((packed)) hcsparams2_t;
+
+typedef struct {
+    uint32_t _64bitcap : 1;
+    uint32_t bnc : 1;
+    uint32_t contextsize : 1;
+    uint32_t portpowercontrol : 1;
+    uint32_t portindicator : 1;
+    uint32_t lhrc : 1;
+    uint32_t ltc : 1;
+    uint32_t nss : 1;
+    uint32_t pae : 1;
+    uint32_t spc : 1;
+    uint32_t sec : 1;
+    uint32_t cfc : 1;
+    uint32_t max_psa_size : 4;
+    uint32_t xECP : 16;
+} __attribute__((packed)) hccparams1_t;
+
+typedef struct {
+    uint8_t caplength;
+    uint8_t reserved;
+    uint16_t hciversion;
+    hcsparams1_t hcsparams1;
+    hcsparams2_t hcsparams2;
+    uint32_t hcsparams3;
+    hccparams1_t hccparams1;
+    uint32_t dboff;
+    uint32_t rtsoff;
+    uint32_t hccparms2;
+} xhci_cap_regs_t;
+
+typedef struct {
+    uint32_t usbcmd;
+    uint32_t usbsts;
+    uint32_t pagesize;
+    uint32_t reserved1[2];
+    uint32_t dnctrl;
+    uint64_t crcr;
+    uint32_t reserved2[4];
+    uint64_t dcbaap;
+    uint32_t config;
+} xhci_op_regs_t;
+
+#define XHCI_USBCMD_RS (1 << 0)
+#define XHCI_USBCMD_HOSTCONTROLLERREST (1 << 1)
+#define XHCI_USB_SPEED_FULL_SPEED           1 
+#define XHCI_USB_SPEED_LOW_SPEED            2 
+#define XHCI_USB_SPEED_HIGH_SPEED           3 
+#define XHCI_USB_SPEED_SUPER_SPEED          4 
+#define XHCI_USB_SPEED_SUPER_SPEED_PLUS     5 
+
+typedef struct {
+    uint32_t portsc;
+    uint32_t portpmsc;
+    uint32_t portli;
+} xhci_port_regs_t;
+
+typedef struct {
+    uint64_t erst_segment : 3;
+    uint64_t event_busy : 1;
+    uint64_t event_ring_pointer : 60;
+} xhci_erdp_t;
+
+typedef struct {
+    uint32_t iman;   
+    uint32_t imod;    
+    uint32_t erstsz; 
+    uint32_t reserved0;
+    uint64_t erstba;   
+    union {
+        xhci_erdp_t erdp;
+        uint64_t erdp_val;
+    };
+} IR_t;
+
+typedef struct {
+    uint32_t mfindex;     
+    uint32_t reserved1[7]; 
+    IR_t int_regs[1024];
+} xhci_runtime_regs_t;
+
+typedef struct {
+    uint64_t base; 
+    uint32_t size;         
+    uint32_t reserved0;
+} xhci_erst_t;
+
+typedef struct {
+    uint32_t cycle : 1;
+    uint32_t nexttrb : 1;
+    uint32_t interruptonshort : 1;
+    uint32_t nosnoop : 1;
+    uint32_t chain : 1;
+    uint32_t intoncompletion : 1;
+    uint32_t immediate : 1;
+    uint32_t reserved1 : 2;
+    uint32_t blockeventint : 1;
+    uint32_t type : 6;
+    uint32_t reserved2 : 16;
+} xhci_trb_info_t;
+
+typedef struct {
+    uint64_t base; 
+    union {
+        struct {
+            uint32_t reserved0 : 24;
+            uint32_t ret_code : 8;
+        };
+        uint32_t status; 
+    };   
+    union {
+        xhci_trb_info_t info_s;
+        uint32_t info;
+    };
+} xhci_trb_t;
+
+typedef struct {
+    uint32_t cycle : 1;
+    uint32_t reserved1 : 9;
+    uint32_t type : 6;
+    uint32_t vfid : 8;
+    uint32_t slotid : 8;
+} xhci_slot_info_trb_t;
+
+typedef struct {
+    uint64_t base;
+    uint32_t CCP : 24;
+    uint32_t ret_code : 8;
+    union {
+        xhci_slot_info_trb_t info_s;
+        uint32_t info;
+    };
+} xhci_slot_trb_t;
+
+typedef struct {
+    uint32_t cycle : 1;
+    uint32_t reserved0 : 8;
+    uint32_t bsr : 1;
+    uint32_t type : 6;
+    uint8_t reserved1;
+    uint8_t slotid;
+} xhci_set_addr_info_trb_t;
+
+typedef struct {
+    uint64_t base;
+    uint32_t status;
+    union {
+        xhci_set_addr_info_trb_t info_s;
+        uint32_t info;
+    };
+} xhci_set_addr_trb_t;
+
+typedef struct {
+    uint8_t cycle;
+    uint16_t trb_limit;
+    uint64_t queue;
+    uint64_t phys;
+    xhci_trb_t* trb;
+} xhci_command_ring_ctx_t;
+
+typedef struct {
+    uint16_t trb_limit;
+    uint64_t queue;
+    uint8_t cycle;
+    volatile IR_t* father;
+    xhci_trb_t* trb;
+    xhci_erst_t* table;
+} xhci_event_ring_ctx_t;
+
+typedef struct {
+    uint16_t trb_limit;
+    uint64_t queue;
+    uint8_t cycle;
+    uint32_t slot;
+    uint64_t phys;
+    xhci_trb_t* trb;
+} xhci_port_ring_ctx_t;
+
+typedef struct {
+    uint32_t D;
+    uint32_t A;
+    uint32_t reserved0[5];
+    uint8_t configvalue;
+    uint8_t interfacenum;
+    uint8_t altsetting;
+    uint8_t reserved1;
+} __attribute__((packed)) xhci_input_control_ctx_t;
+
+typedef struct {
+    uint32_t D;
+    uint32_t A;
+    uint32_t reserved0[5];
+    uint8_t configvalue;
+    uint8_t interfacenum;
+    uint8_t altsetting;
+    uint8_t reserved1;
+    uint32_t align[8];
+} __attribute__((packed)) xhci_input_control_ctx64_t;
+
+typedef struct {
+    uint32_t routestring : 20;
+    uint8_t speed : 4;
+    uint8_t reserved0 : 1;
+    uint8_t multitt : 1;
+    uint8_t hub : 1;
+    uint8_t contextentries : 5;
+    uint16_t maxexitlat;
+    uint8_t porthubnum;
+    uint8_t numofports;
+    uint8_t parenthubslot;
+    uint8_t parentportnum;
+    uint8_t thinktime : 2;
+    uint8_t reserved1 : 4;
+    uint16_t irtarget : 10;
+    uint8_t address;
+    uint32_t reserved2 : 19;
+    uint8_t slotstate : 5;
+    uint32_t reserved3[4];
+} __attribute__((packed)) xhci_slot_ctx_t;
+
+typedef struct {
+    uint32_t routestring : 20;
+    uint8_t speed : 4;
+    uint8_t reserved0 : 1;
+    uint8_t multitt : 1;
+    uint8_t hub : 1;
+    uint8_t contextentries : 5;
+    uint16_t maxexitlat;
+    uint8_t porthubnum;
+    uint8_t numofports;
+    uint8_t parenthubslot;
+    uint8_t parentportnum;
+    uint8_t thinktime : 2;
+    uint8_t reserved1 : 4;
+    uint16_t irtarget : 10;
+    uint8_t address;
+    uint32_t reserved2 : 19;
+    uint8_t slotstate : 5;
+    uint32_t reserved3[4];
+    uint32_t align[8];
+} __attribute__((packed)) xhci_slot_ctx64_t;
+
+typedef struct {
+    uint32_t state : 3;
+    uint32_t reserved0 : 5;
+    uint32_t mult : 2;
+    uint32_t maxprimarystreams : 5;
+    uint32_t linear : 1;
+    uint32_t interval : 8;
+    uint32_t some_shit_with_long_name : 8;
+    uint32_t reserved1 : 1;
+    uint32_t cerr : 2;
+    uint32_t endpointtype : 3;
+    uint32_t reserved2 : 1;
+    uint32_t hid : 1;
+    uint32_t maxburstsize : 8;
+    uint32_t maxpacketsize : 16;
+    uint64_t base;
+    uint16_t averagetrblen;
+    uint16_t some_shit_with_long_name_lo;
+    uint32_t align[3];
+} __attribute__((packed)) xhci_endpoint_ctx_t;
+
+typedef struct {
+    uint32_t state : 3;
+    uint32_t reserved0 : 5;
+    uint32_t mult : 2;
+    uint32_t maxprimarystreams : 5;
+    uint32_t linear : 1;
+    uint32_t interval : 8;
+    uint32_t some_shit_with_long_name : 8;
+    uint32_t reserved1 : 1;
+    uint32_t cerr : 2;
+    uint32_t endpointtype : 3;
+    uint32_t reserved2 : 1;
+    uint32_t hid : 1;
+    uint32_t maxburstsize : 8;
+    uint32_t maxpacketsize : 16;
+    uint64_t base;
+    uint16_t averagetrblen;
+    uint16_t some_shit_with_long_name_lo;
+    uint32_t align[11];
+} __attribute__((packed)) xhci_endpoint_ctx64_t;
+
+typedef struct {
+    xhci_input_control_ctx_t input_ctx;
+    xhci_slot_ctx_t slot;
+    xhci_endpoint_ctx_t ep0;
+    xhci_endpoint_ctx_t ep[30];
+} __attribute__((packed)) xhci_input_ctx_t;
+
+typedef struct {
+    xhci_input_control_ctx64_t input_ctx;
+    xhci_slot_ctx64_t slot;
+    xhci_endpoint_ctx64_t ep0;
+    xhci_endpoint_ctx64_t ep[30];
+} __attribute__((packed)) xhci_input_ctx64_t;
+
+typedef struct {
+    uint8_t len;
+    uint8_t type;
+} xhci_usb_descriptor_header;
+
+typedef struct {
+    xhci_usb_descriptor_header head;
+    uint16_t usb;
+    uint8_t deviceclass;
+    uint8_t devicesubclass;
+    uint8_t protocol;
+    uint8_t maxpacketsize;
+    uint16_t vendor;
+    uint16_t product0;
+    uint16_t device;
+    uint8_t manufacter;
+    uint8_t product1;
+    uint8_t serialnum;
+    uint8_t numconfigs;
+} xhci_usb_descriptor_t;
+
+typedef struct {
+    xhci_usb_descriptor_header head;
+    uint16_t lang[128];
+} xhci_lang_descriptor_t;
+
+typedef struct {
+    xhci_usb_descriptor_header head;
+    uint16_t str[128];
+} xhci_string_descriptor_t;
+
+typedef struct {
+    xhci_usb_descriptor_header head;
+    uint16_t len;
+    uint8_t numinterfaces;
+    uint8_t configval;
+    uint8_t config;
+    uint8_t attributes;
+    uint8_t maxpower;
+    uint8_t data[1024];
+} xhci_config_descriptor_t;
+
+typedef struct {
+    uint8_t desctype;
+    uint8_t desclen;
+} xhci_hid_sub_desc;
+
+typedef struct {
+    xhci_usb_descriptor_header head;
+    uint16_t hid;
+    uint8_t country;
+    uint8_t numdesc;
+    xhci_hid_sub_desc desc[1024];
+} xhci_hid_descriptor_t;
+
+typedef struct {
+    xhci_usb_descriptor_header head;
+    uint8_t endpointaddr;
+    uint8_t attributes;
+    uint16_t maxpacketsize;
+    uint8_t interval;
+} xhci_endpoint_descriptor_t;
+
+typedef struct {
+    xhci_usb_descriptor_header head;
+    uint8_t num;
+    uint8_t altsetting;
+    uint8_t numendpoints;
+    uint8_t interclass;
+    uint8_t intersubclass;
+    uint8_t protocol;
+    uint8_t interface;
+} xhci_interface_descriptor_t;
+
+typedef struct {
+    uint32_t cycle : 1;
+    uint32_t reserved0 : 8;
+    uint32_t deconfigure : 1;
+    uint32_t type : 6;
+    uint32_t reserved1 : 8;
+    uint32_t slot : 8;
+} xhci_configure_endpoints_info_trb_t;
+
+typedef struct {
+    uint64_t base;
+    uint32_t status;
+    union {
+        xhci_configure_endpoints_info_trb_t info_s;
+        uint32_t info;
+    };
+} xhci_configure_endpoints_trb_t;
+
+typedef struct xhci_device {
+    uint64_t xhci_phys_base;
+    uint64_t xhci_virt_base;
+    uint64_t* dcbaa;
+    uint16_t calculated_scratchpad_count;
+    volatile xhci_cap_regs_t* cap;
+    volatile xhci_op_regs_t* op;
+    volatile xhci_port_regs_t* port;
+    volatile xhci_runtime_regs_t* runtime;
+    volatile uint32_t* doorbell;
+    xhci_command_ring_ctx_t* com_ring;
+    xhci_event_ring_ctx_t* event_ring;
+
+    uint32_t max_ports; 
+
+    uint8_t usb3ports[64];
+
+    struct xhci_device* next;
+} __attribute__((packed)) xhci_device_t;
+
+typedef struct {
+    uint32_t type : 6;      // TRB_TYPE = 0b100000 (32)
+    uint32_t reserved : 26;
+    uint32_t cycle : 1;
+} __attribute__((packed)) xhci_noop_trb_t;
+
+typedef struct xhci_interface {
+    uint8_t type;
+    void* data;
+
+    uint64_t len;
+    void* buffer;
+    
+    xhci_interface* next;
+} xhci_interface_t;
+
+#define USB_TYPE_KEYBOARD 4
+#define USB_TYPE_MOUSE 3
+
+typedef struct xhci_usb_device {
+    xhci_port_ring_ctx_t* transfer_ring;
+    xhci_usb_descriptor_t* desc;
+    xhci_config_descriptor_t* config;
+    xhci_device_t* dev;
+    xhci_input_ctx_t* input_ctx;
+    xhci_port_ring_ctx_t* ep_ctx[30];
+    uint64_t phys_buffers[30];
+    uint8_t* buffers[30];
+    uint8_t main_ep;
+    uint16_t buffers_need_size[30];
+    uint8_t doorbell_values[30];
+    xhci_interface_t* interface;
+    struct xhci_usb_device* next;
+    uint64_t phys_input_ctx;
+    uint32_t slotid;
+    uint32_t portnum;
+    uint32_t type;
+    uint8_t _is64byte;
+    mouse_packet_t last_pack;
+    int evdev_num;
+    uint8_t add_buffer[8];
+} xhci_usb_device_t;
+
+typedef struct {
+    uint32_t cycle : 1;
+    uint32_t reserved0 : 1;
+    uint32_t eventdata : 1;
+    uint32_t reserved1 : 7;
+    uint32_t type : 6;
+    uint32_t ep_id : 5;
+    uint32_t reserved2 : 3;
+    uint32_t slot : 8;
+} xhci_done_info_trb_t;
+
+typedef struct {
+    uint64_t base;
+    struct {
+        uint32_t seek : 24;
+        uint32_t ret_code : 8;
+    };
+    union {
+        xhci_done_info_trb_t info_s;
+        uint32_t info;
+    };
+} xhci_done_trb_t;
+
+typedef struct {
+    union {
+        struct {
+            uint8_t id;
+            uint8_t nextcap;
+            uint16_t info;
+        };
+        uint32_t full;
+    };
+} xhci_ext_cap_t;
+
+typedef struct {
+    union {
+        struct {
+            uint8_t id;
+            uint8_t nextcap;
+            uint8_t minor;
+            uint8_t major;
+        };
+        uint32_t firsthalf;
+    };
+
+    uint32_t name;
+
+    union {
+        struct {
+            uint8_t portoffset;
+            uint8_t portcount;
+            uint8_t protocoldefine;
+            uint8_t protocolspeedid;
+        };
+        uint32_t thirdhalf;
+    };
+
+    union {
+        struct {
+            uint8_t slottype : 4;
+            uint32_t reserved0 : 28;
+        };
+        uint32_t fourhalf;
+    };
+} xhci_usb_cap_t;
+
+typedef struct {
+    uint8_t type;
+    uint8_t request;
+    uint16_t value;
+    uint16_t index;
+    uint16_t len;
+} xhci_usb_command_t;
+
+typedef struct {
+    xhci_usb_command_t command;
+    uint32_t len : 17;
+    uint32_t reserved0 : 5;
+    uint32_t target : 10;
+    uint32_t cycle : 1;
+    uint32_t reserved1 : 3;
+    uint32_t chain : 1;      
+    uint32_t intoncomp : 1;
+    uint32_t imdata : 1;
+    uint32_t reserved2 : 3;
+    uint32_t type : 6;
+    uint32_t trt : 2;
+    uint32_t reserved3 : 14;
+} xhci_setupstage_trb_t;
+
+typedef struct {
+    uint64_t data;
+    uint32_t len : 17;
+    uint32_t tdsize : 5;
+    uint32_t target : 10;
+    uint32_t cycle : 1;
+    uint32_t evnexttrb : 1;
+    uint32_t intrshortpacket : 1;
+    uint32_t nosnoop : 1;
+    uint32_t chain : 1;
+    uint32_t introncomp : 1;
+    uint32_t imdata : 1;
+    uint32_t reserved0 : 3;
+    uint32_t type : 6;
+    uint32_t direction : 1;
+    uint32_t reserved1 : 15;
+} xhci_datastage_trb_t;
+
+typedef struct {
+    uint64_t base;
+    uint32_t reserved0 : 22;
+    uint32_t target : 10;
+    uint32_t cycle : 1;
+    uint32_t evnext : 1;
+    uint32_t reserved1 : 2;
+    uint32_t chain : 1;
+    uint32_t intoncomp : 1;
+    uint32_t reserved2 : 3;
+    uint32_t blockevent : 1;
+    uint32_t type : 6;
+    uint32_t reserved3 : 16;
+} xhci_eventdata_trb_t;
+
+typedef struct {
+    uint64_t reserved0;
+    uint32_t reserved1 : 22;
+    uint32_t target : 10;
+    uint32_t cycle : 1;
+    uint32_t evnext : 1;
+    uint32_t reserved2 : 2;
+    uint32_t chain : 1;
+    uint32_t intoncomp : 1;
+    uint32_t reserved3 : 4;
+    uint32_t type : 6;
+    uint32_t direction : 1;
+    uint32_t reserved4 : 15;
+} xhci_statusstage_trb_t;
+
+typedef struct {
+    uint32_t cycle : 1;
+    uint32_t ent : 1;
+    uint32_t isp : 1;
+    uint32_t nosnoop : 1;
+    uint32_t chain : 1;
+    uint32_t ioc : 1;
+    uint32_t imdata : 1;
+    uint32_t reserved0 : 2;
+    uint32_t bei : 1;
+    uint32_t type : 6;
+    uint32_t dir : 1;
+    uint32_t reserved1 : 15;
+} xhci_normal_info_trb_t;
+
+typedef struct {
+    uint64_t base;
+    uint32_t trbtransferlen : 17;
+    uint32_t tdsize : 5;
+    uint32_t target : 10;
+    union {
+        xhci_normal_info_trb_t info_s;
+        uint32_t info;
+    };
+} xhci_normal_trb_t;
+
+typedef struct {
+    uint32_t cycle : 1;
+    uint32_t reserved0 : 9;
+    uint32_t type : 6;
+    uint32_t reserved1 : 16;
+} xhci_port_change_info_t;
+
+typedef struct {
+    struct {
+        uint32_t reserved0 : 24;
+        uint32_t port : 8;
+    };
+    uint32_t status;
+    union {
+        xhci_port_change_info_t info_s;
+        uint32_t info;
+    };
+} xhci_port_change_trb_t;
+
+typedef struct xhci_hid_driver {
+    void (*func)(xhci_usb_device_t* usbdev,xhci_done_trb_t* trb);
+    int type;
+    struct xhci_hid_driver* next;
+} xhci_hid_driver_t;
+
+#define XHCI_ENDPOINTTYPE_ISOCHRONOUS_OUT  1
+#define XHCI_ENDPOINTTYPE_BULK_OUT         2
+#define XHCI_ENDPOINTTYPE_INTERRUPT_OUT    3
+#define XHCI_ENDPOINTTYPE_ISOCHRONOUS_IN   5
+#define XHCI_ENDPOINTTYPE_BULK_IN          6
+#define XHCI_ENDPOINTTYPE_INTERRUPT_IN     7
+#define TRB_NORMAL_TYPE 1 
+#define TRB_SETUPSTAGE_TYPE 2
+#define TRB_DATASTAGE_TYPE 3
+#define TRB_STATUSSTAGE_TYPE 4
+#define TRB_ISOCH_TYPE 5
+#define TRB_LINK_TYPE 6
+#define TRB_EVENTDATA_TYPE 7
+#define TRB_NOOP_TYPE 8
+#define TRB_ENABLESLOTCOMMAND_TYPE 9
+#define TRB_DISABLESLOTCOMMAND_TYPE 10
+#define TRB_ADDRESSDEVICECOMMAND_TYPE 11
+#define TRB_CONFIGUREENDPOINTCOMMAND_TYPE 12
+#define TRB_EVALUATECONTEXTCOMMAND_TYPE 13
+#define TRB_RESETENDPOINTCOMMAND_TYPE 14
+#define TRB_STOPENDPOINTCOMMAND_TYPE 15
+#define TRB_SETTRDEQPOINTERCOMMAND_TYPE 16
+#define TRB_RESETDEVICECOMMAND_TYPE 17
+#define TRB_FORCEEVENTCOMMAND_TYPE 18
+#define TRB_NEGBANDWIDTHCOMMAND_TYPE 19
+#define TRB_SETLATENCYCOMMAND_TYPE 20
+#define TRB_GETPORTBANDWIDTHCOMMAND_TYPE 21
+#define TRB_FORCEHEADERCOMMAND_TYPE 22
+#define TRB_NOOPCOMMAND_TYPE 23
+#define TRB_TRANSFEREVENT_TYPE 32
+#define TRB_COMMANDCOMPLETIONEVENT_TYPE 33
+#define TRB_PORTSTATUSCHANGEEVENT_TYPE 34
+#define TRB_HOSTCONTROLLEREVENT_TYPE 37
+#define TRB_DEVICENOTIFICATIONEVENT_TYPE 38
+#define TRB_MFINDEXWARPEVENT_TYPE 39
+
+int xhci_init();
\ No newline at end of file