70 lines
1.3 KiB
C
70 lines
1.3 KiB
C
#ifndef _KERNEL_DEVICE_XHCI_H
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#define _KERNEL_DEVICE_XHCI_H
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#include <aux/compiler.h>
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#include <device/def_device_op.h>
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#include <libk/list.h>
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#include <libk/std.h>
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#include <proc/proc.h>
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#include <proc/reschedule.h>
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#include <proc/suspension_q.h>
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/* event ring segment table entry */
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struct xhci_erst_entry {
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uint64_t ptr;
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uint32_t size;
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uint32_t _rsvd;
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} PACKED;
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/* transfer request block */
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struct xhci_trb {
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uint64_t param;
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uint32_t status;
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uint32_t ctrl;
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} PACKED;
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struct xhci_init {
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uintptr_t xhci_mmio_base;
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bool irqs_support;
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uint8_t irq;
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};
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struct xhci {
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struct device* device;
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bool irqs_support;
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uint8_t irq;
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uintptr_t xhci_mmio_base;
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uintptr_t xhci_oper_base;
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uintptr_t xhci_runtime_base;
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uintptr_t xhci_doorbell_base;
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uintptr_t* xhci_dcbaa;
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uintptr_t xhci_dcbaa_phys;
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uint32_t max_scratchpad;
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struct xhci_trb* cmd_ring;
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uintptr_t cmd_ring_phys;
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uint32_t cmd_ring_idx;
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uint32_t cmd_ring_size;
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uint8_t cmd_cycle_bit;
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struct xhci_trb* event_ring;
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uintptr_t event_ring_phys;
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uint32_t event_ring_idx;
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uint32_t event_ring_size;
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uint8_t event_cycle_bit;
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struct xhci_erst_entry* erst;
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uintptr_t erst_phys;
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atomic_bool pending;
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};
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DEFINE_DEVICE_INIT (xhci_init);
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DEFINE_DEVICE_FINI (xhci_fini);
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#endif // _KERNEL_DEVICE_XHCI_H
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