1 /* 2 * Copyright (c) 2014 François Tigeot 3 * All rights reserved. 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 unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef LINUX_PCI_H 28 #define LINUX_PCI_H 29 30 #define PCI_ANY_ID (~0u) 31 32 #include <sys/bus.h> 33 #include <bus/pci/pcivar.h> 34 35 #include <linux/device.h> 36 #include <linux/io.h> 37 38 #include <linux/pci_ids.h> 39 40 struct pci_dev { 41 struct device *dev; 42 }; 43 44 static inline int 45 pci_read_config_byte(struct pci_dev *pdev, int where, u8 *val) 46 { 47 *val = (u16)pci_read_config(pdev->dev, where, 1); 48 return 0; 49 } 50 51 static inline int 52 pci_read_config_word(struct pci_dev *pdev, int where, u16 *val) 53 { 54 *val = (u16)pci_read_config(pdev->dev, where, 2); 55 return 0; 56 } 57 58 static inline int 59 pci_read_config_dword(struct pci_dev *pdev, int where, u32 *val) 60 { 61 *val = (u32)pci_read_config(pdev->dev, where, 4); 62 return 0; 63 } 64 65 static inline int 66 pci_write_config_byte(struct pci_dev *pdev, int where, u8 val) 67 { 68 pci_write_config(pdev->dev, where, val, 1); 69 return 0; 70 } 71 72 static inline int 73 pci_write_config_word(struct pci_dev *pdev, int where, u16 val) 74 { 75 pci_write_config(pdev->dev, where, val, 2); 76 return 0; 77 } 78 79 static inline int 80 pci_write_config_dword(struct pci_dev *pdev, int where, u32 val) 81 { 82 pci_write_config(pdev->dev, where, val, 4); 83 return 0; 84 } 85 86 87 static inline struct pci_dev * 88 pci_dev_get(struct pci_dev *dev) 89 { 90 /* Linux increments a reference count here */ 91 return dev; 92 } 93 94 static inline struct pci_dev * 95 pci_dev_put(struct pci_dev *dev) 96 { 97 /* Linux decrements a reference count here */ 98 return dev; 99 } 100 101 102 static inline int 103 pci_set_dma_mask(struct pci_dev *dev, u64 mask) 104 { 105 return -EIO; 106 } 107 108 static inline int 109 pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) 110 { 111 return -EIO; 112 } 113 114 #endif /* LINUX_PCI_H */ 115