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