1 /* 2 * 3 * Copyright (C) 2010 coresystems GmbH 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _PCI_PCI_H 30 #define _PCI_PCI_H 31 32 /* we implement at least this version */ 33 #define PCI_LIB_VERSION 0x020200 34 35 #include <pci.h> 36 37 #define PCI_REVISION_ID REG_REVISION_ID 38 #define PCI_CLASS_PROG REG_PROG_IF 39 #define PCI_CLASS_DEVICE REG_SUBCLASS 40 #define PCI_SUBSYSTEM_VENDOR_ID REG_SUBSYS_VENDOR_ID 41 #define PCI_SUBSYSTEM_ID REG_SUBSYS_ID 42 43 #define PCI_COMMAND REG_COMMAND 44 #define PCI_COMMAND_IO REG_COMMAND_IO 45 #define PCI_COMMAND_MEMORY REG_COMMAND_MEM 46 #define PCI_COMMAND_MASTER REG_COMMAND_BM 47 48 #define PCI_HEADER_TYPE REG_HEADER_TYPE 49 #define PCI_HEADER_TYPE_NORMAL HEADER_TYPE_NORMAL 50 #define PCI_HEADER_TYPE_BRIDGE HEADER_TYPE_BRIDGE 51 #define PCI_HEADER_TYPE_CARDBUS HEADER_TYPE_CARDBUS 52 53 #define PCI_BASE_ADDRESS_0 0x10 54 #define PCI_BASE_ADDRESS_1 0x14 55 #define PCI_BASE_ADDRESS_2 0x18 56 #define PCI_BASE_ADDRESS_3 0x1c 57 #define PCI_BASE_ADDRESS_4 0x20 58 #define PCI_BASE_ADDRESS_5 0x24 59 #define PCI_BASE_ADDRESS_SPACE 1 // mask 60 #define PCI_BASE_ADDRESS_SPACE_IO 1 61 #define PCI_BASE_ADDRESS_SPACE_MEM 0 62 #define PCI_BASE_ADDRESS_MEM_MASK ~0xf 63 #define PCI_BASE_ADDRESS_IO_MASK ~0x3 64 65 #define PCI_ROM_ADDRESS 0x30 66 #define PCI_ROM_ADDRESS1 0x38 // on bridges 67 #define PCI_ROM_ADDRESS_MASK ~0x7ff 68 69 #define PCI_CLASS_STORAGE_AHCI 0x0106 70 #define PCI_CLASS_STORAGE_NVME 0x0108 71 #define PCI_CLASS_MEMORY_OTHER 0x0580 72 73 #define PCI_VENDOR_ID_INTEL 0x8086 74 75 struct pci_dev { 76 u16 domain; 77 u8 bus, dev, func; 78 u16 vendor_id, device_id; 79 u16 device_class; 80 struct pci_dev *next; 81 }; 82 83 /* 84 * values to match devices against. 85 * "-1" means "don't care", everything else requires an exact match 86 */ 87 struct pci_filter { 88 int domain, bus, dev, func; 89 int vendor, device; 90 struct pci_dev *devices; 91 }; 92 93 enum pci_access_type { /* dummy for code compatibility */ 94 PCI_ACCESS_AUTO, 95 PCI_ACCESS_I386_TYPE1, 96 PCI_ACCESS_MAX 97 }; 98 99 struct pci_access { 100 unsigned int method; /* dummy for code compatibility */ 101 struct pci_dev *devices; 102 }; 103 104 u8 pci_read_byte(struct pci_dev *dev, int pos); 105 u16 pci_read_word(struct pci_dev *dev, int pos); 106 u32 pci_read_long(struct pci_dev *dev, int pos); 107 108 int pci_write_byte(struct pci_dev *dev, int pos, u8 data); 109 int pci_write_word(struct pci_dev *dev, int pos, u16 data); 110 int pci_write_long(struct pci_dev *dev, int pos, u32 data); 111 112 struct pci_access *pci_alloc(void); 113 void pci_init(struct pci_access*); 114 void pci_cleanup(struct pci_access*); 115 char *pci_filter_parse_slot(struct pci_filter*, const char*); 116 int pci_filter_match(struct pci_filter*, struct pci_dev*); 117 void pci_filter_init(struct pci_access*, struct pci_filter*); 118 void pci_scan_bus(struct pci_access*); 119 struct pci_dev *pci_get_dev(struct pci_access*, u16, u8, u8, u8); 120 void pci_free_dev(struct pci_dev *); 121 122 #endif 123