pci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_ID, CONFIG_SYS_PCI_SUBSYS_DEVICEID);elsepci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_ID, CONFIG_SYS_PCI_SUBSYS_DEVICEID2);#elsepci_write_config_word(PCIDEVID_405GP, PCI_SUBSYSTEM_ID, CONFIG_SYS_PCI_SUBSYS_DEVICEID);#endif/* *...
pci_read_config_byte(dev, PCI_REVISION_ID, &revision); return revision; } 写配置空间 int pci_write_config_byte(struct pci_dev *dev, int where, u8 val); int pci_write_config_word(struct pci_dev *dev, int where, u16 val); int pci_write_config_dword(struct pci_dev *dev, int where...
The DMA Control/Status Register File is memory mapped into the PCI memory space and connected to the user application logic. The host processor accesses the register file through memory read and write cycles on the bus. An Endpoint Block Plus memory base address register facilitates access to the...
pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);if(!(status & PCI_PRI_STATUS_STOPPED))return-EBUSY; pci_read_config_dword(pdev, pos + PCI_PRI_MAX_REQ, &max_requests); reqs = min(max_requests, reqs); pdev->pri_reqs_alloc = reqs; pci_write_config_dword(pdev, pos ...
③read_config_byte,read_config_word,read_config_dword ④write_config_byte,write_config_word,write_config_dword 函数①的功能是:返回一个布尔值表明所运行的计算机是否具有支持PCI设备的能力;函数②的功能是:返回设备在总线上的位置及函数指针bus_number、device_function;函数③、④的功能是:通过调用该类函数,...
内核态:pci_read_config_byte() pci_read_config_word(pdev, PCI_VENDOR_ID, &valw); lspci 查看产品特性 lspci# 列表所有 pci 设备01:00.0 Ethernet controller:IntelCorporation82576GigabitNetworkConnection(rev01)01:00.1 Ethernet controller:IntelCorporation82576GigabitNetworkConnection(rev01)03:00.0 Network ...
The DMA Control/Status Register File is memory mapped into the PCI memory space and connected to the user application logic. The host processor accesses the register file through memory read and write cycles on the bus. An Endpoint Block Plus memory base address register facilitates access to the...
: int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val); int pci_read_config_word(struct pci_dev *dev, int where, u16 *val); int pci_read_config_dword(struct pci_dev *dev, int where, u32 *val); Read one, two, or four bytes from the configuration space of the...
int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val);int pci_read_config_word(struct pci_dev *dev, int where, u16 *val);int pci_read_config_dword(struct pci_dev *dev, int where, u32 *val); Read one, two, or four bytes from the configuration space of the device...
int pci_read_config_dword(struct pci_dev *dev, int where, u32 *val); int pci_write_config_byte(struct pci_dev *dev, int where, u8 val); int pci_write_config_word(struct pci_dev *dev, int where, u16 val); int pci_write_config_dword(struct pci_dev *dev, int where, u32 val...