增加了xhci cap regs的数据结构

This commit is contained in:
fslongjin
2022-07-17 23:07:09 +08:00
parent 6f5d73771f
commit 6ecc19cc48
4 changed files with 71 additions and 5 deletions

View File

@ -1,9 +1,52 @@
#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basebar0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_header_t *header);
void xhci_init(struct pci_device_structure_general_device_t *header);