4 #include <lunaix/device.h>
5 #include <lunaix/ds/ldga.h>
6 #include <lunaix/ds/llist.h>
7 #include <lunaix/types.h>
9 #define EXPORT_PCI_DEVICE(id, pci_devdef, stage) \
10 EXPORT_DEVICE(id, &(pci_devdef)->devdef, stage)
12 #define PCI_MATCH_EXACT -1
13 #define PCI_MATCH_ANY 0
14 #define PCI_MATCH_VENDOR 0xffff
17 #define PCI_TPCIBRIDGE 0x1
18 #define PCI_TCARDBRIDGE 0x2
20 #define PCI_VENDOR_INVLD 0xffff
22 #define PCI_REG_VENDOR_DEV 0
23 #define PCI_REG_STATUS_CMD 0x4
24 #define PCI_REG_BAR(num) (0x10 + (num - 1) * 4)
26 #define PCI_DEV_VENDOR(x) ((x) & 0xffff)
27 #define PCI_DEV_DEVID(x) (((x) & 0xffff0000) >> 16)
28 #define PCI_INTR_IRQ(x) ((x) & 0xff)
29 #define PCI_INTR_PIN(x) (((x) & 0xff00) >> 8)
30 #define PCI_DEV_CLASS(x) ((x) >> 8)
31 #define PCI_DEV_REV(x) (((x) & 0xff))
32 #define PCI_BUS_NUM(x) (((x) >> 16) & 0xff)
33 #define PCI_SLOT_NUM(x) (((x) >> 11) & 0x1f)
34 #define PCI_FUNCT_NUM(x) (((x) >> 8) & 0x7)
36 #define PCI_BAR_MMIO(x) (!((x) & 0x1))
37 #define PCI_BAR_CACHEABLE(x) ((x) & 0x8)
38 #define PCI_BAR_TYPE(x) ((x) & 0x6)
39 #define PCI_BAR_ADDR_MM(x) ((x) & ~0xf)
40 #define PCI_BAR_ADDR_IO(x) ((x) & ~0x3)
41 #define PCI_BAR_COUNT 6
43 #define PCI_MSI_ADDR_LO(msi_base) ((msi_base) + 4)
44 #define PCI_MSI_ADDR_HI(msi_base) ((msi_base) + 8)
45 #define PCI_MSI_DATA(msi_base, offset) ((msi_base) + 8 + offset)
46 #define PCI_MSI_MASK(msi_base, offset) ((msi_base) + 0xc + offset)
48 #define MSI_CAP_64BIT 0x80
49 #define MSI_CAP_MASK 0x100
50 #define MSI_CAP_ENABLE 0x1
52 #define PCI_RCMD_DISABLE_INTR (1 << 10)
53 #define PCI_RCMD_FAST_B2B (1 << 9)
54 #define PCI_RCMD_BUS_MASTER (1 << 2)
55 #define PCI_RCMD_MM_ACCESS (1 << 1)
56 #define PCI_RCMD_IO_ACCESS 1
58 #define PCI_CFGADDR(pciloc) ((u32_t)(pciloc) << 8) | 0x80000000UL
60 #define PCILOC(bus, dev, funct) \
61 (((bus) & 0xff) << 8) | (((dev) & 0x1f) << 3) | ((funct) & 0x7)
62 #define PCILOC_BUS(loc) (((loc) >> 8) & 0xff)
63 #define PCILOC_DEV(loc) (((loc) >> 3) & 0x1f)
64 #define PCILOC_FN(loc) ((loc) & 0x7)
66 #define PCI_ID_ANY (-1)
68 typedef unsigned int pci_reg_t;
69 typedef u16_t pciaddr_t;
71 // PCI device header format
72 // Ref: "PCI Local Bus Specification, Rev.3, Section 6.1"
74 #define BAR_TYPE_MMIO 0x1
75 #define BAR_TYPE_CACHABLE 0x2
76 #define PCI_DRV_NAME_LEN 32
88 struct llist_header dev_chain;
89 struct hlist_node dev_cache;
94 struct device_def* def;
103 struct pci_base_addr bar[6];
105 #define PCI_DEVICE(devbase) (container_of((devbase), struct pci_device, dev))
107 struct pci_device_list
109 struct llist_header peers;
110 struct pci_device* pcidev;
113 typedef void* (*pci_drv_init)(struct pci_device*);
115 #define PCI_DEVIDENT(vendor, id) \
116 ((((id) & 0xffff) << 16) | (((vendor) & 0xffff)))
118 struct pci_device_def
120 struct device_def devdef;
122 bool (*test_compatibility)(struct pci_device_def*, struct pci_device*);
124 #define pcidev_def(dev_def_ptr) \
125 container_of((dev_def_ptr), struct pci_device_def, devdef)
127 #define binded_pcidev(pcidev) ((pcidev)->binding.def)
130 * @brief 根据类型代码(Class Code)去在拓扑中寻找一个设备
131 * 类型代码请参阅: PCI LB Spec. Appendix D.
133 * @return struct pci_device*
135 struct pci_device* pci_get_device_by_class(u32_t class);
138 * @brief 根据设备商ID和设备ID,在拓扑中寻找一个设备
142 * @return struct pci_device*
145 pci_get_device_by_id(u16_t vendorId, u16_t deviceId);
148 * @brief 初始化PCI设备的基地址寄存器。返回由该基地址代表的,
149 * 设备所使用的MMIO或I/O地址空间的,大小。
150 * 参阅:PCI LB Spec. (Rev 3) Section 6.2.5.1, Implementation Note.
152 * @param dev The PCI device
153 * @param bar_out Value in BAR
154 * @param bar_num The index of BAR (starting from 1)
158 pci_bar_sizing(struct pci_device* dev, u32_t* bar_out, u32_t bar_num);
161 * @brief Bind an abstract device instance to the pci device
163 * @param pcidev pci device
164 * @param devobj abstract device instance
167 pci_bind_instance(struct pci_device* pcidev, void* devobj);
170 pci_probe_bar_info(struct pci_device* device);
173 pci_setup_msi(struct pci_device* device, int vector);
176 pci_probe_msi_info(struct pci_device* device);
179 pci_bind_definition(struct pci_device_def* pcidev_def, bool* more);
182 pci_bind_definition_all(struct pci_device_def* pcidef);
184 static inline unsigned int
185 pci_device_vendor(struct pci_device* pcidev)
187 return PCI_DEV_VENDOR(pcidev->device_info);
190 static inline unsigned int
191 pci_device_devid(struct pci_device* pcidev)
193 return PCI_DEV_DEVID(pcidev->device_info);
196 static inline unsigned int
197 pci_device_class(struct pci_device* pcidev)
199 return PCI_DEV_CLASS(pcidev->class_info);
202 static inline struct pci_base_addr*
203 pci_device_bar(struct pci_device* pcidev, int index)
205 return &pcidev->bar[index];
209 pci_cmd_set_mmio(pci_reg_t* cmd)
211 *cmd |= PCI_RCMD_MM_ACCESS;
216 pci_cmd_set_pmio(pci_reg_t* cmd)
218 *cmd |= PCI_RCMD_IO_ACCESS;
222 pci_cmd_set_msi(pci_reg_t* cmd)
224 *cmd |= PCI_RCMD_DISABLE_INTR;
228 pci_cmd_set_bus_master(pci_reg_t* cmd)
230 *cmd |= PCI_RCMD_BUS_MASTER;
234 pci_cmd_set_fast_b2b(pci_reg_t* cmd)
236 *cmd |= PCI_RCMD_FAST_B2B;
240 pci_bar_mmio_space(struct pci_base_addr* bar)
242 return (bar->type & BAR_TYPE_MMIO);
246 pci_capability_msi(struct pci_device* pcidev)
248 return !!pcidev->msi_loc;
252 pci_intr_irq(struct pci_device* pcidev)
254 return PCI_INTR_IRQ(pcidev->intr_info);
258 pci_apply_command(struct pci_device* pcidev, pci_reg_t cmd);
261 pci_read_cspace(ptr_t base, int offset);
264 pci_write_cspace(ptr_t base, int offset, pci_reg_t data);
267 pci_config_msi_data(int vector);
273 #endif /* __LUNAIX_PCI_H */