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

... / ...

Commit	Line	Data
	1	#include <io.h>
	2	#include <stdint.h>
	3	#include <pci.h>
	4
	5	static void __pci_config(int bus, int slot, int fn, int addr)
	6	{
	7	outl(0xCF8, 0x80000000ULL \| (bus << 16) \| (slot << 11) \| (fn << 8) \| (addr & ~3));
	8	}
	9
	10	void pci_write32(int bus, int slot, int fn, int addr, uint32_t data)
	11	{
	12	__pci_config(bus, slot, fn, addr);
	13	outl(0xCFC, data);
	14	}
	15
	16	void pci_write16(int bus, int slot, int fn, int addr, uint16_t data)
	17	{
	18	__pci_config(bus, slot, fn, addr);
	19	outw(0xCFC, data);
	20	}
	21
	22	void pci_write8(int bus, int slot, int fn, int addr, uint8_t data)
	23	{
	24	__pci_config(bus, slot, fn, addr);
	25	outb(0xCFC, data);
	26	}
	27
	28	uint32_t pci_read32(int bus, int slot, int fn, int addr)
	29	{
	30	__pci_config(bus, slot, fn, addr);
	31	return inl(0xCFC);
	32	}
	33
	34	uint16_t pci_read16(int bus, int slot, int fn, int addr)
	35	{
	36	__pci_config(bus, slot, fn, addr);
	37	return inw(0xCFC + (addr & 2));
	38	}
	39
	40	uint8_t pci_read8(int bus, int slot, int fn, int addr)
	41	{
	42	__pci_config(bus, slot, fn, addr);
	43	return inb(0xCFC + (addr & 3));
	44	}