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- #pragma once
- #include <driver/usb/usb.h>
- #include <driver/pci/pci.h>
- // xhci Capability Registers offset
- #define XHCI_CAPS_CAPLENGTH 0x00 // Cap 寄存器组的长度
- #define XHCI_CAPS_RESERVED 0x01
- #define XHCI_CAPS_HCIVERSION 0x02 // 接口版本号
- #define XHCI_CAPS_HCSPARAMS1 0x04
- #define XHCI_CAPS_HCSPARAMS2 0x08
- #define XHCI_CAPS_HCSPARAMS3 0x0c
- #define XHCI_CAPS_HCCPARAMS1 0x10 // capability params 1
- #define XHCI_CAPS_DBOFF 0x14 // Doorbell offset
- #define XHCI_CAPS_RTSOFF 0x18 // Runtime register space offset
- #define XHCI_CAPS_HCCPARAMS2 0x1c // capability params 2
- struct xhci_caps_HCSPARAMS1_reg_t
- {
- unsigned max_slots : 8; // 最大插槽数
- unsigned max_intrs : 11; // 最大中断数
- unsigned reserved : 5;
- unsigned max_ports : 8; // 最大端口数
- }__attribute__((packed));
- /**
- * @brief xhci端口信息
- *
- */
- struct xhci_port_info_t
- {
- uint8_t flags; // port flags
- uint8_t paired_port_num; // 与当前端口所配对的另一个端口(相同物理接口的不同速度的port)
- uint8_t offset; // offset of this port within this protocal
- uint8_t reserved;
- } __attribute__((packed));
- struct xhci_controller_t
- {
- struct pci_device_structure_general_device_t *pci_dev_hdr; // 指向pci header结构体的指针
- int controller_id; // 操作系统给controller的编号
- int vbase; // 虚拟地址base(bar0映射到的虚拟地址)
- struct xhci_port_info_t *ports; // 指向端口信息数组的指针
- };
- /**
- * @brief 初始化xhci控制器
- *
- * @param header 指定控制器的pci device头部
- */
- void xhci_init(struct pci_device_structure_general_device_t *header);
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