4 #include <lunaix/device.h>
5 #include <lunaix/ds/ldga.h>
6 #include <lunaix/ds/llist.h>
7 #include <lunaix/types.h>
10 #define PCI_TPCIBRIDGE 0x1
11 #define PCI_TCARDBRIDGE 0x2
13 #define PCI_VENDOR_INVLD 0xffff
15 #define PCI_REG_VENDOR_DEV 0
16 #define PCI_REG_STATUS_CMD 0x4
17 #define PCI_REG_BAR(num) (0x10 + (num - 1) * 4)
19 #define PCI_DEV_VENDOR(x) ((x) & 0xffff)
20 #define PCI_DEV_DEVID(x) (((x) & 0xffff0000) >> 16)
21 #define PCI_INTR_IRQ(x) ((x) & 0xff)
22 #define PCI_INTR_PIN(x) (((x) & 0xff00) >> 8)
23 #define PCI_DEV_CLASS(x) ((x) >> 8)
24 #define PCI_DEV_REV(x) (((x) & 0xff))
25 #define PCI_BUS_NUM(x) (((x) >> 16) & 0xff)
26 #define PCI_SLOT_NUM(x) (((x) >> 11) & 0x1f)
27 #define PCI_FUNCT_NUM(x) (((x) >> 8) & 0x7)
29 #define PCI_BAR_MMIO(x) (!((x) & 0x1))
30 #define PCI_BAR_CACHEABLE(x) ((x) & 0x8)
31 #define PCI_BAR_TYPE(x) ((x) & 0x6)
32 #define PCI_BAR_ADDR_MM(x) ((x) & ~0xf)
33 #define PCI_BAR_ADDR_IO(x) ((x) & ~0x3)
35 #define PCI_MSI_ADDR(msi_base) ((msi_base) + 4)
36 #define PCI_MSI_DATA(msi_base, offset) ((msi_base) + 8 + offset)
37 #define PCI_MSI_MASK(msi_base, offset) ((msi_base) + 0xc + offset)
39 #define MSI_CAP_64BIT 0x80
40 #define MSI_CAP_MASK 0x100
41 #define MSI_CAP_ENABLE 0x1
43 #define PCI_RCMD_DISABLE_INTR (1 << 10)
44 #define PCI_RCMD_FAST_B2B (1 << 9)
45 #define PCI_RCMD_BUS_MASTER (1 << 2)
46 #define PCI_RCMD_MM_ACCESS (1 << 1)
47 #define PCI_RCMD_IO_ACCESS 1
49 #define PCI_ADDRESS(bus, dev, funct) \
50 (((bus) & 0xff) << 16) | (((dev) & 0xff) << 11) | \
51 (((funct) & 0xff) << 8) | 0x80000000
53 #define PCI_ID_ANY (-1)
55 typedef unsigned int pci_reg_t;
57 // PCI device header format
58 // Ref: "PCI Local Bus Specification, Rev.3, Section 6.1"
60 #define BAR_TYPE_MMIO 0x1
61 #define BAR_TYPE_CACHABLE 0x2
62 #define PCI_DRV_NAME_LEN 32
74 struct llist_header dev_chain;
80 struct pci_base_addr bar[6];
82 #define PCI_DEVICE(devbase) (container_of((devbase), struct pci_device, dev))
84 typedef void* (*pci_drv_init)(struct pci_device*);
86 #define PCI_DEVIDENT(vendor, id) \
87 ((((id) & 0xffff) << 16) | (((vendor) & 0xffff)))
94 struct device_def devdef;
98 * @brief 根据类型代码(Class Code)去在拓扑中寻找一个设备
99 * 类型代码请参阅: PCI LB Spec. Appendix D.
101 * @return struct pci_device*
103 struct pci_device* pci_get_device_by_class(u32_t class);
106 * @brief 根据设备商ID和设备ID,在拓扑中寻找一个设备
110 * @return struct pci_device*
113 pci_get_device_by_id(u16_t vendorId, u16_t deviceId);
116 * @brief 初始化PCI设备的基地址寄存器。返回由该基地址代表的,
117 * 设备所使用的MMIO或I/O地址空间的,大小。
118 * 参阅:PCI LB Spec. (Rev 3) Section 6.2.5.1, Implementation Note.
120 * @param dev The PCI device
121 * @param bar_out Value in BAR
122 * @param bar_num The index of BAR (starting from 1)
126 pci_bar_sizing(struct pci_device* dev, u32_t* bar_out, u32_t bar_num);
129 pci_add_driver(const char* name,
136 pci_bind_driver(struct pci_device* pci_dev);
139 pci_probe_bar_info(struct pci_device* device);
142 pci_probe_msi_info(struct pci_device* device);
144 #endif /* __LUNAIX_PCI_H */