/* * PCI defines and function prototypes * Copyright 1994, Drew Eckhardt * Copyright 1997--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz> * * For more information, please consult the following manuals (look at * http://www.pcisig.com/ for how to get them): * * PCI BIOS Specification * PCI Local Bus Specification * PCI to PCI Bridge Specification * PCI System Design Guide */ #ifndef PCI_H #define PCI_H #include <stdint.h> #include <stddef.h> #include <device/pci_def.h> #include <device/resource.h> #include <device/device.h> #ifndef __PRE_RAM__ #include <device/pci_ops.h> #include <device/pci_rom.h> /* Common pci operations without a standard interface */ struct pci_operations { /* set the Subsystem IDs for the PCI device */ void (*set_subsystem)(device_t dev, unsigned vendor, unsigned device); }; /* Common pci bus operations */ struct pci_bus_operations { uint8_t (*read8) (struct bus *pbus, int bus, int devfn, int where); uint16_t (*read16) (struct bus *pbus, int bus, int devfn, int where); uint32_t (*read32) (struct bus *pbus, int bus, int devfn, int where); void (*write8) (struct bus *pbus, int bus, int devfn, int where, uint8_t val); void (*write16) (struct bus *pbus, int bus, int devfn, int where, uint16_t val); void (*write32) (struct bus *pbus, int bus, int devfn, int where, uint32_t val); }; struct pci_driver { const struct device_operations *ops; unsigned short vendor; unsigned short device; const unsigned short *devices; }; #define __pci_driver __attribute__ ((used,__section__(".rodata.pci_driver"))) /** start of compile time generated pci driver array */ extern struct pci_driver pci_drivers[]; /** end of compile time generated pci driver array */ extern struct pci_driver epci_drivers[]; extern struct device_operations default_pci_ops_dev; extern struct device_operations default_pci_ops_bus; void pci_dev_read_resources(device_t dev); void pci_bus_read_resources(device_t dev); void pci_dev_set_resources(device_t dev); void pci_dev_enable_resources(device_t dev); void pci_bus_enable_resources(device_t dev); void pci_bus_reset(struct bus *bus); device_t pci_probe_dev(device_t dev, struct bus *bus, unsigned devfn); unsigned int do_pci_scan_bridge(device_t bus, unsigned int max, unsigned int (*do_scan_bus)(struct bus *bus, unsigned min_devfn, unsigned max_devfn, unsigned int max)); unsigned int pci_scan_bridge(device_t bus, unsigned int max); unsigned int pci_scan_bus(struct bus *bus, unsigned min_devfn, unsigned max_devfn, unsigned int max); uint8_t pci_moving_config8(struct device *dev, unsigned reg); uint16_t pci_moving_config16(struct device *dev, unsigned reg); uint32_t pci_moving_config32(struct device *dev, unsigned reg); unsigned pci_find_next_capability(device_t dev, unsigned cap, unsigned last); unsigned pci_find_capability(device_t dev, unsigned cap); struct resource *pci_get_resource(struct device *dev, unsigned long index); void pci_dev_set_subsystem(device_t dev, unsigned vendor, unsigned device); void pci_dev_init(struct device *dev); void pci_assign_irqs(unsigned bus, unsigned slot, const unsigned char pIntAtoD[4]); #define PCI_IO_BRIDGE_ALIGN 4096 #define PCI_MEM_BRIDGE_ALIGN (1024*1024) static inline const struct pci_operations *ops_pci(device_t dev) { const struct pci_operations *pops; pops = 0; if (dev && dev->ops) { pops = dev->ops->ops_pci; } return pops; } static inline const struct pci_bus_operations *ops_pci_bus(struct bus *bus) { const struct pci_bus_operations *bops; bops = 0; if (bus && bus->dev && bus->dev->ops) { bops = bus->dev->ops->ops_pci_bus; } if (!bops) bops = pci_config_default(); return bops; } unsigned mainboard_pci_subsystem_vendor_id(struct device *dev); unsigned mainboard_pci_subsystem_device_id(struct device *dev); #endif #endif /* PCI_H */