127 lines
2.3 KiB
C
127 lines
2.3 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_ctx32 {
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uint32_t dw[8];
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} PACKED;
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struct xhci_ctx64 {
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uint32_t dw[16];
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} PACKED;
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struct xhci_input_ctx32 {
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struct xhci_ctx32 ctrl;
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struct xhci_ctx32 slot;
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struct xhci_ctx32 endpoints[31];
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};
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struct xhci_input_ctx64 {
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struct xhci_ctx64 ctrl;
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struct xhci_ctx64 slot;
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struct xhci_ctx64 endpoints[31];
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};
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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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#define XHCI_PORT_USB2 0
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#define XHCI_PORT_USB3 1
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struct xhci_port {
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struct list_node_link ports_link;
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uint8_t port_value;
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int type;
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};
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struct xhci_pdevice {
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struct list_node_link pdevices_link;
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uint8_t port_value;
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int slot_id;
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struct xhci_trb* endpoint0_ring;
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uintptr_t endpoint0_ring_phys;
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uint32_t endpoint0_ring_idx;
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uint32_t endpoint0_ring_size;
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uint8_t endpoint0_cycle_bit;
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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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uintptr_t* scratchpads;
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uintptr_t scratchpads_phys;
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uint32_t max_slots;
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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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size_t xhci_ctx_size;
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struct list_node_link* xhci_ports;
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struct list_node_link* xhci_pdevices;
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atomic_bool pending;
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uint8_t last_slot_id;
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uint8_t last_cmpl_code;
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spin_lock_t setup_lock;
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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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DEFINE_DEVICE_OP (xhci_poll_driver);
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#endif // _KERNEL_DEVICE_XHCI_H
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