From 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:29:51 +0200 Subject: Adding upstream version 2.06. Signed-off-by: Daniel Baumann --- include/grub/i386/pci.h | 105 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 include/grub/i386/pci.h (limited to 'include/grub/i386/pci.h') diff --git a/include/grub/i386/pci.h b/include/grub/i386/pci.h new file mode 100644 index 0000000..dffeb56 --- /dev/null +++ b/include/grub/i386/pci.h @@ -0,0 +1,105 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#ifndef GRUB_CPU_PCI_H +#define GRUB_CPU_PCI_H 1 + +#include +#include + +#define GRUB_MACHINE_PCI_IO_BASE 0 +#define GRUB_PCI_ADDR_REG 0xcf8 +#define GRUB_PCI_DATA_REG 0xcfc +#define GRUB_PCI_NUM_BUS 256 +#define GRUB_PCI_NUM_DEVICES 32 + +static inline grub_uint32_t +grub_pci_read (grub_pci_address_t addr) +{ + grub_outl (addr, GRUB_PCI_ADDR_REG); + return grub_inl (GRUB_PCI_DATA_REG); +} + +static inline grub_uint16_t +grub_pci_read_word (grub_pci_address_t addr) +{ + grub_outl (addr & ~3, GRUB_PCI_ADDR_REG); + return grub_inw (GRUB_PCI_DATA_REG + (addr & 3)); +} + +static inline grub_uint8_t +grub_pci_read_byte (grub_pci_address_t addr) +{ + grub_outl (addr & ~3, GRUB_PCI_ADDR_REG); + return grub_inb (GRUB_PCI_DATA_REG + (addr & 3)); +} + +static inline void +grub_pci_write (grub_pci_address_t addr, grub_uint32_t data) +{ + grub_outl (addr, GRUB_PCI_ADDR_REG); + grub_outl (data, GRUB_PCI_DATA_REG); +} + +static inline void +grub_pci_write_word (grub_pci_address_t addr, grub_uint16_t data) +{ + grub_outl (addr & ~3, GRUB_PCI_ADDR_REG); + grub_outw (data, GRUB_PCI_DATA_REG + (addr & 3)); +} + +static inline void +grub_pci_write_byte (grub_pci_address_t addr, grub_uint8_t data) +{ + grub_outl (addr & ~3, GRUB_PCI_ADDR_REG); + grub_outb (data, GRUB_PCI_DATA_REG + (addr & 3)); +} + +#ifndef GRUB_MACHINE_IEEE1275 + +static inline volatile void * +grub_pci_device_map_range (grub_pci_device_t dev __attribute__ ((unused)), + grub_addr_t base, + grub_size_t size __attribute__ ((unused))) +{ + return (volatile void *) base; +} + +static inline void +grub_pci_device_unmap_range (grub_pci_device_t dev __attribute__ ((unused)), + volatile void *mem __attribute__ ((unused)), + grub_size_t size __attribute__ ((unused))) +{ +} + +#else + +volatile void * +grub_pci_device_map_range (grub_pci_device_t dev, + grub_addr_t base, + grub_size_t size); + +void +grub_pci_device_unmap_range (grub_pci_device_t dev, + volatile void *mem, + grub_size_t size); + +#endif + + +#endif /* GRUB_CPU_PCI_H */ -- cgit v1.2.3