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Matches new pci.c interface.
This commit is contained in:
Michael Brown
parent
5603c879c4
commit
6343381e25
@ -21,8 +21,14 @@
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* your option) any later version.
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*/
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#include "stdint.h"
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#include "pci_ids.h"
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/*
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* PCI constants
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*
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*/
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#define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */
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#define PCI_COMMAND_MEM 0x2 /* Enable response in mem space */
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#define PCI_COMMAND_MASTER 0x4 /* Enable bus mastering */
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@ -35,17 +41,6 @@
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#define PCI_COMMAND_SERR 0x100 /* Enable SERR */
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#define PCI_COMMAND_FAST_BACK 0x200 /* Enable back-to-back writes */
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#define PCIBIOS_PCI_FUNCTION_ID 0xb1XX
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#define PCIBIOS_PCI_BIOS_PRESENT 0xb101
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#define PCIBIOS_FIND_PCI_DEVICE 0xb102
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#define PCIBIOS_FIND_PCI_CLASS_CODE 0xb103
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#define PCIBIOS_GENERATE_SPECIAL_CYCLE 0xb106
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#define PCIBIOS_READ_CONFIG_BYTE 0xb108
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#define PCIBIOS_READ_CONFIG_WORD 0xb109
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#define PCIBIOS_READ_CONFIG_DWORD 0xb10a
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#define PCIBIOS_WRITE_CONFIG_BYTE 0xb10b
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#define PCIBIOS_WRITE_CONFIG_WORD 0xb10c
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#define PCIBIOS_WRITE_CONFIG_DWORD 0xb10d
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#define PCI_VENDOR_ID 0x00 /* 16 bits */
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#define PCI_DEVICE_ID 0x02 /* 16 bits */
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@ -238,125 +233,98 @@
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#define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */
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#define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */
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#define PCI_SLOT(devfn) ((devfn) >> 3)
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#define PCI_FUNC(devfn) ((devfn) & 0x07)
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#define BIOS32_SIGNATURE (('_' << 0) + ('3' << 8) + ('2' << 16) + ('_' << 24))
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/* PCI signature: "PCI " */
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#define PCI_SIGNATURE (('P' << 0) + ('C' << 8) + ('I' << 16) + (' ' << 24))
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/* PCI service signature: "$PCI" */
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#define PCI_SERVICE (('$' << 0) + ('P' << 8) + ('C' << 16) + ('I' << 24))
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union bios32 {
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struct {
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unsigned long signature; /* _32_ */
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unsigned long entry; /* 32 bit physical address */
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unsigned char revision; /* Revision level, 0 */
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unsigned char length; /* Length in paragraphs should be 01 */
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unsigned char checksum; /* All bytes must add up to zero */
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unsigned char reserved[5]; /* Must be zero */
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} fields;
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char chars[16];
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};
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struct pci_device;
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struct dev;
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typedef int (*pci_probe_t)(struct dev *, struct pci_device *);
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/*
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* A physical PCI device
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*
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*/
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struct pci_device {
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uint32_t class;
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uint32_t membase; /* BAR 1 */
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uint32_t ioaddr; /* first IO BAR */
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uint16_t vendor, dev_id;
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const char *name;
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/* membase and ioaddr are silly and depricated */
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unsigned int membase;
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unsigned int ioaddr;
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unsigned int romaddr;
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unsigned char irq;
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unsigned char devfn;
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unsigned char bus;
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unsigned char use_specified;
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const struct pci_driver *driver;
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uint16_t class;
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uint16_t busdevfn;
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uint8_t revision;
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uint8_t irq;
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};
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#define PCI_BUS(busdevfn) ( ( (busdevfn) >> 8 ) & 0xff )
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#define PCI_DEV(busdevfn) ( ( (busdevfn) >> 3 ) & 0x1f )
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#define PCI_FUNC(busdevfn) ( (busdevfn) & 0x07 )
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extern void scan_pci_bus(int type, struct pci_device *dev);
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extern void find_pci(int type, struct pci_device *dev);
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extern int pcibios_read_config_byte(unsigned int bus, unsigned int device_fn, unsigned int where, uint8_t *value);
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extern int pcibios_write_config_byte (unsigned int bus, unsigned int device_fn, unsigned int where, uint8_t value);
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extern int pcibios_read_config_word(unsigned int bus, unsigned int device_fn, unsigned int where, uint16_t *value);
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extern int pcibios_write_config_word (unsigned int bus, unsigned int device_fn, unsigned int where, uint16_t value);
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extern int pcibios_read_config_dword(unsigned int bus, unsigned int device_fn, unsigned int where, uint32_t *value);
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extern int pcibios_write_config_dword(unsigned int bus, unsigned int device_fn, unsigned int where, uint32_t value);
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extern unsigned long pcibios_bus_base(unsigned int bus);
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extern void adjust_pci_device(struct pci_device *p);
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static inline int
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pci_read_config_byte(struct pci_device *dev, unsigned int where, uint8_t *value)
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{
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return pcibios_read_config_byte(dev->bus, dev->devfn, where, value);
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}
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static inline int
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pci_write_config_byte(struct pci_device *dev, unsigned int where, uint8_t value)
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{
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return pcibios_write_config_byte(dev->bus, dev->devfn, where, value);
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}
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static inline int
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pci_read_config_word(struct pci_device *dev, unsigned int where, uint16_t *value)
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{
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return pcibios_read_config_word(dev->bus, dev->devfn, where, value);
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}
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static inline int
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pci_write_config_word(struct pci_device *dev, unsigned int where, uint16_t value)
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{
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return pcibios_write_config_word(dev->bus, dev->devfn, where, value);
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}
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static inline int
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pci_read_config_dword(struct pci_device *dev, unsigned int where, uint32_t *value)
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{
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return pcibios_read_config_dword(dev->bus, dev->devfn, where, value);
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}
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static inline int
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pci_write_config_dword(struct pci_device *dev, unsigned int where, uint32_t value)
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{
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return pcibios_write_config_dword(dev->bus, dev->devfn, where, value);
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}
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/* Helper functions to find the size of a pci bar */
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extern unsigned long pci_bar_start(struct pci_device *dev, unsigned int bar);
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extern unsigned long pci_bar_size(struct pci_device *dev, unsigned int bar);
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/* Helper function to find pci capabilities */
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extern int pci_find_capability(struct pci_device *dev, int cap);
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/*
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* An individual PCI device identified by vendor and device IDs
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*
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*/
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struct pci_id {
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unsigned short vendor, dev_id;
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const char *name;
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};
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struct dev;
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/* Most pci drivers will use this */
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/*
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* PCI_ROM is used to build up entries in a struct pci_id array. It
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* is also parsed by parserom.pl to generate Makefile rules and files
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* for rom-o-matic.
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*/
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#define PCI_ROM( rom_vendor, rom_dev_id, rom_name, rom_description ) { \
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.vendor = rom_vendor, \
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.dev_id = rom_dev_id, \
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.name = rom_name, \
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}
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/*
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* A PCI driver, with a device ID (struct pci_id) table and an
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* optional class.
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*
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* Set the class to something other than PCI_NO_CLASS if the driver
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* can handle an entire class of devices.
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*
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*/
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struct pci_driver {
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int type;
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const char *name;
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pci_probe_t probe;
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struct pci_id *ids;
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int id_count;
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/* On a few occasions the hardware is standardized enough that
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* we only need to know the class of the device and not the exact
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* type to drive the device correctly. If this is the case
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* set a class value other than 0.
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*/
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unsigned short class;
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uint16_t class;
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};
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#define PCI_NO_CLASS 0
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#define __pci_driver __attribute__ ((used,__section__(".drivers.pci")))
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/* Defined by the linker... */
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extern const struct pci_driver pci_drivers[];
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extern const struct pci_driver pci_drivers_end[];
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/*
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* Define a PCI driver.
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*
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*/
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#define PCI_DRIVER( driver_name, pci_ids, pci_class ) { \
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.name = driver_name, \
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.ids = pci_ids, \
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.id_count = sizeof ( pci_ids ) / sizeof ( pci_ids[0] ), \
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.class = pci_class, \
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}
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#define PCI_ROM(VENDOR_ID, DEVICE_ID, IMAGE, DESCRIPTION) \
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{ VENDOR_ID, DEVICE_ID, IMAGE, }
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/*
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* These are the functions we expect pci_io.c to provide.
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*
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*/
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extern int pci_read_config_byte ( struct pci_device *dev, unsigned int where,
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uint8_t *value );
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extern int pci_write_config_byte ( struct pci_device *dev, unsigned int where,
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uint8_t value );
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extern int pci_read_config_word ( struct pci_device *dev, unsigned int where,
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uint16_t *value );
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extern int pci_write_config_word ( struct pci_device *dev, unsigned int where,
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uint16_t value );
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extern int pci_read_config_dword ( struct pci_device *dev, unsigned int where,
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uint32_t *value );
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extern int pci_write_config_dword ( struct pci_device *dev, unsigned int where,
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uint32_t value );
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extern unsigned long pci_bus_base ( struct pci_device *dev );
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/*
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* Functions in pci.c
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*
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*/
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extern void set_pci_device ( uint16_t busdevfn );
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extern struct pci_device * find_pci_device ( struct pci_driver *driver,
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struct dev *dev );
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extern unsigned long pci_bar_start ( struct pci_device *pci,
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unsigned int bar );
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extern unsigned long pci_bar_size ( struct pci_device *pci, unsigned int bar );
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extern int pci_find_capability ( struct pci_device *pci, int capability );
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#endif /* PCI_H */
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