/************************************************************************** ** ** $Id: pcibios.h,v 2.1 94/09/16 08:01:37 wolf Rel $ ** ** #define for pci-bus bios functions. ** #define for pci configuration space registers. ** ** 386bsd / FreeBSD ** **------------------------------------------------------------------------- ** ** Copyright (c) 1994 Wolfgang Stanglmeier. All rights reserved. ** Copyright (c) 1994 Charles Hannum. All rights reserved. ** ** Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions ** are met: ** 1. Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** 2. Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in the ** documentation and/or other materials provided with the distribution. ** 3. The name of the author may not be used to endorse or promote products ** derived from this software without specific prior written permission. ** ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ** **------------------------------------------------------------------------- */ #ifndef __PCIBIOS_H__ #define __PCIBIOS_H__ /* ** the availability of a pci bus. ** configuration mode (1 or 2) ** 0 if no pci bus found. */ int pci_conf_mode (void); /* ** The number of the last available pci bus. */ int pci_last_bus (void); /* ** get a "ticket" for accessing a pci device ** configuration space. */ pcici_t pcitag (unsigned char bus, unsigned char device, unsigned char func); /* ** read or write the configuration space. */ u_long pci_conf_read (pcici_t tag, u_long reg ); void pci_conf_write (pcici_t tag, u_long reg, u_long data); /*------------------------------------------------------------------ ** ** Names for PCI configuration space registers. ** ** Copyright (c) 1994 Charles Hannum. All rights reserved. ** **------------------------------------------------------------------ */ /* * Device identification register; contains a vendor ID and a device ID. * We have little need to distinguish the two parts. */ #define PCI_ID_REG 0x00 /* * Command and status register. */ #define PCI_COMMAND_STATUS_REG 0x04 #define PCI_COMMAND_IO_ENABLE 0x00000001 #define PCI_COMMAND_MEM_ENABLE 0x00000002 #define PCI_COMMAND_MASTER_ENABLE 0x00000004 #define PCI_COMMAND_SPECIAL_ENABLE 0x00000008 #define PCI_COMMAND_INVALIDATE_ENABLE 0x00000010 #define PCI_COMMAND_PALETTE_ENABLE 0x00000020 #define PCI_COMMAND_PARITY_ENABLE 0x00000040 #define PCI_COMMAND_STEPPING_ENABLE 0x00000080 #define PCI_COMMAND_SERR_ENABLE 0x00000100 #define PCI_COMMAND_BACKTOBACK_ENABLE 0x00000200 #define PCI_STATUS_BACKTOBACK_OKAY 0x00800000 #define PCI_STATUS_PARITY_ERROR 0x01000000 #define PCI_STATUS_DEVSEL_FAST 0x00000000 #define PCI_STATUS_DEVSEL_MEDIUM 0x02000000 #define PCI_STATUS_DEVSEL_SLOW 0x04000000 #define PCI_STATUS_DEVSEL_MASK 0x06000000 #define PCI_STATUS_TARGET_TARGET_ABORT 0x08000000 #define PCI_STATUS_MASTER_TARGET_ABORT 0x10000000 #define PCI_STATUS_MASTER_ABORT 0x20000000 #define PCI_STATUS_SPECIAL_ERROR 0x40000000 #define PCI_STATUS_PARITY_DETECT 0x80000000 /* * Class register; defines basic type of device. */ #define PCI_CLASS_REG 0x08 #define PCI_CLASS_MASK 0xff000000 #define PCI_SUBCLASS_MASK 0x00ff0000 /* base classes */ #define PCI_CLASS_PREHISTORIC 0x00000000 #define PCI_CLASS_MASS_STORAGE 0x01000000 #define PCI_CLASS_NETWORK 0x02000000 #define PCI_CLASS_DISPLAY 0x03000000 #define PCI_CLASS_MULTIMEDIA 0x04000000 #define PCI_CLASS_MEMORY 0x05000000 #define PCI_CLASS_BRIDGE 0x06000000 #define PCI_CLASS_UNDEFINED 0xff000000 /* 0x00 prehistoric subclasses */ #define PCI_SUBCLASS_PREHISTORIC_MISC 0x00000000 #define PCI_SUBCLASS_PREHISTORIC_VGA 0x00010000 /* 0x01 mass storage subclasses */ #define PCI_SUBCLASS_MASS_STORAGE_SCSI 0x00000000 #define PCI_SUBCLASS_MASS_STORAGE_IDE 0x00010000 #define PCI_SUBCLASS_MASS_STORAGE_FLOPPY 0x00020000 #define PCI_SUBCLASS_MASS_STORAGE_IPI 0x00030000 #define PCI_SUBCLASS_MASS_STORAGE_MISC 0x00800000 /* 0x02 network subclasses */ #define PCI_SUBCLASS_NETWORK_ETHERNET 0x00000000 #define PCI_SUBCLASS_NETWORK_TOKENRING 0x00010000 #define PCI_SUBCLASS_NETWORK_FDDI 0x00020000 #define PCI_SUBCLASS_NETWORK_MISC 0x00800000 /* 0x03 display subclasses */ #define PCI_SUBCLASS_DISPLAY_VGA 0x00000000 #define PCI_SUBCLASS_DISPLAY_XGA 0x00010000 #define PCI_SUBCLASS_DISPLAY_MISC 0x00800000 /* 0x04 multimedia subclasses */ #define PCI_SUBCLASS_MULTIMEDIA_VIDEO 0x00000000 #define PCI_SUBCLASS_MULTIMEDIA_AUDIO 0x00010000 #define PCI_SUBCLASS_MULTIMEDIA_MISC 0x00800000 /* 0x05 memory subclasses */ #define PCI_SUBCLASS_MEMORY_RAM 0x00000000 #define PCI_SUBCLASS_MEMORY_FLASH 0x00010000 #define PCI_SUBCLASS_MEMORY_MISC 0x00800000 /* 0x06 bridge subclasses */ #define PCI_SUBCLASS_BRIDGE_HOST 0x00000000 #define PCI_SUBCLASS_BRIDGE_ISA 0x00010000 #define PCI_SUBCLASS_BRIDGE_EISA 0x00020000 #define PCI_SUBCLASS_BRIDGE_MC 0x00030000 #define PCI_SUBCLASS_BRIDGE_PCI 0x00040000 #define PCI_SUBCLASS_BRIDGE_PCMCIA 0x00050000 #define PCI_SUBCLASS_BRIDGE_MISC 0x00800000 /* * Mapping registers */ #define PCI_MAP_REG_START 0x10 #define PCI_MAP_REG_END 0x28 #define PCI_MAP_MEMORY 0x00000000 #define PCI_MAP_IO 0x00000001 #define PCI_MAP_MEMORY_TYPE_32BIT 0x00000000 #define PCI_MAP_MEMORY_TYPE_32BIT_1M 0x00000002 #define PCI_MAP_MEMORY_TYPE_64BIT 0x00000004 #define PCI_MAP_MEMORY_TYPE_MASK 0x00000006 #define PCI_MAP_MEMORY_CACHABLE 0x00000008 #define PCI_MAP_MEMORY_ADDRESS_MASK 0xfffffff0 /* * Interrupt configuration register */ #define PCI_INTERRUPT_REG 0x3c #define PCI_INTERRUPT_PIN_MASK 0x0000ff00 #define PCI_INTERRUPT_PIN_EXTRACT(x) ((((x) & PCI_INTERRUPT_PIN_MASK) >> 8) & 0xff) #define PCI_INTERRUPT_PIN_NONE 0x00 #define PCI_INTERRUPT_PIN_A 0x01 #define PCI_INTERRUPT_PIN_B 0x02 #define PCI_INTERRUPT_PIN_C 0x03 #define PCI_INTERRUPT_PIN_D 0x04 #define PCI_INTERRUPT_LINE_MASK 0x000000ff #define PCI_INTERRUPT_LINE_EXTRACT(x) ((((x) & PCI_INTERRUPT_LINE_MASK) >> 0) & 0xff) #define PCI_INTERRUPT_LINE_INSERT(x,v) (((x) & ~PCI_INTERRUPT_LINE_MASK) | ((v) << 0)) #endif