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/*
* 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
#if CONFIG_PCI
#include <stdint.h>
#include <stddef.h>
#include <rules.h>
#include <arch/io.h>
#include <device/pci_def.h>
#include <device/resource.h>
#include <device/device.h>
#include <device/pci_ops.h>
#include <device/pci_rom.h>
#ifndef __SIMPLE_DEVICE__
/* 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);
void (*set_L1_ss_latency)(device_t dev, unsigned int off);
};
/* 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);
void do_pci_scan_bridge(device_t bus,
void (*do_scan_bus)(struct bus *bus,
unsigned min_devfn, unsigned max_devfn));
void pci_scan_bridge(device_t bus);
void pci_scan_bus(struct bus *bus, unsigned min_devfn, unsigned max_devfn);
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);
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);
unsigned int pci_match_simple_dev(device_t dev, pci_devfn_t sdev);
const char * pin_to_str(int pin);
int get_pci_irq_pins(device_t dev, device_t *parent_bdg);
void pci_assign_irqs(unsigned bus, unsigned slot,
const unsigned char pIntAtoD[4]);
const char *get_pci_class_name(device_t dev);
const char *get_pci_subclass_name(device_t dev);
#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;
}
#endif /* ! __SIMPLE_DEVICE__ */
#ifdef __PRE_RAM__
unsigned pci_find_next_capability(pci_devfn_t dev, unsigned cap, unsigned last);
unsigned pci_find_capability(pci_devfn_t dev, unsigned cap);
#else /* !__PRE_RAM__ */
unsigned pci_find_next_capability(device_t dev, unsigned cap, unsigned last);
unsigned pci_find_capability(device_t dev, unsigned cap);
#endif /* __PRE_RAM__ */
void pci_early_bridge_init(void);
int pci_early_device_probe(u8 bus, u8 dev, u32 mmio_base);
#ifndef __ROMCC__
static inline int pci_base_address_is_memory_space(unsigned int attr)
{
return (attr & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_MEMORY;
}
#endif
#endif /* CONFIG_PCI */
#endif /* PCI_H */
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