Joshua Wise's Git repositories - netwatch.git/blame_incremental

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Commit	Line	Data
	1	/* pci.h
	2	* Definitions for PCI access
	3	* NetWatch system management mode administration console
	4	*
	5	* Copyright (c) 2008 Jacob Potter and Joshua Wise. All rights reserved.
	6	* This program is free software; you can redistribute and/or modify it under
	7	* the terms found in the file LICENSE in the root of this source tree.
	8	*
	9	*/
	10
	11
	12	#ifndef PCI_H
	13	#define PCI_H
	14
	15	#include <stdint.h>
	16
	17	/* General PCI functions. This is implemented by pci-linux.c and pci-raw.c; the
	18	* former uses Linux's /proc/bus/pci interface for access from userspace, while
	19	* the latter accesses the PCI hardware directly.
	20	*/
	21
	22	void pci_write32(int bus, int slot, int fn, int addr, uint32_t data);
	23	void pci_write16(int bus, int slot, int fn, int addr, uint16_t data);
	24	void pci_write8(int bus, int slot, int fn, int addr, uint8_t data);
	25
	26	uint32_t pci_read32(int bus, int slot, int fn, int addr);
	27	uint16_t pci_read16(int bus, int slot, int fn, int addr);
	28	uint8_t pci_read8(int bus, int slot, int fn, int addr);
	29
	30	/* Hardware-agnostic functions implemented by pci.c */
	31	typedef enum {
	32	PCI_BAR_NONE = 0,
	33	PCI_BAR_MEMORY32,
	34	PCI_BAR_MEMORY64,
	35	PCI_BAR_IO
	36	} pci_bar_type_t;
	37
	38	typedef struct pci_bar {
	39	pci_bar_type_t type;
	40	unsigned char prefetchable;
	41	unsigned long addr;
	42	} pci_bar_t;
	43
	44	typedef struct pci_dev {
	45	unsigned short vid, did;
	46	int bus, dev, fn;
	47	pci_bar_t bars[6];
	48	} pci_dev_t;
	49
	50	typedef int (pci_probe_fn_t)(pci_dev_t , void *data);
	51
	52	void pci_bus_enum();
	53	int pci_probe(pci_probe_fn_t probe, void *data);
	54
	55	typedef struct pci_id {
	56	unsigned short vid, did;
	57	const char name, friendlyname;
	58	} pci_id_t;
	59
	60	#define PCI_ROM(a,b,c,d) {(a),(b),(c),(d)}
	61
	62	typedef struct pci_driver {
	63	const char *name;
	64	pci_probe_fn_t probe;
	65	pci_id_t *ids;
	66	int id_count;
	67	} pci_driver_t;
	68
	69	int pci_probe_driver(pci_driver_t *driver);
	70
	71	#endif