1 /* 2 * Copyright (c) 1997, Stefan Esser <se@FreeBSD.ORG> 3 * Copyright (c) 1997, 1998, 1999, Kenneth D. Merry <ken@FreeBSD.ORG> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice unmodified, this list of conditions, and the following 11 * disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef _SYS_PCIIO_H_ 29 #define _SYS_PCIIO_H_ 30 31 #include <sys/ioccom.h> 32 33 #define PCI_MAXNAMELEN 16 34 35 typedef enum { 36 PCI_GETCONF_LAST_DEVICE, 37 PCI_GETCONF_LIST_CHANGED, 38 PCI_GETCONF_MORE_DEVS, 39 PCI_GETCONF_ERROR 40 } pci_getconf_status; 41 42 typedef enum { 43 PCI_GETCONF_NO_MATCH = 0x0000, 44 PCI_GETCONF_MATCH_DOMAIN = 0x0001, 45 PCI_GETCONF_MATCH_BUS = 0x0002, 46 PCI_GETCONF_MATCH_DEV = 0x0004, 47 PCI_GETCONF_MATCH_FUNC = 0x0008, 48 PCI_GETCONF_MATCH_NAME = 0x0010, 49 PCI_GETCONF_MATCH_UNIT = 0x0020, 50 PCI_GETCONF_MATCH_VENDOR = 0x0040, 51 PCI_GETCONF_MATCH_DEVICE = 0x0080, 52 PCI_GETCONF_MATCH_CLASS = 0x0100 53 } pci_getconf_flags; 54 55 struct pcisel { 56 u_int32_t pc_domain; /* domain number */ 57 u_int8_t pc_bus; /* bus number */ 58 u_int8_t pc_dev; /* device on this bus */ 59 u_int8_t pc_func; /* function on this device */ 60 }; 61 62 struct pci_conf { 63 struct pcisel pc_sel; /* domain+bus+slot+function */ 64 u_int8_t pc_hdr; /* PCI header type */ 65 u_int16_t pc_subvendor; /* card vendor ID */ 66 u_int16_t pc_subdevice; /* card device ID, assigned by 67 card vendor */ 68 u_int16_t pc_vendor; /* chip vendor ID */ 69 u_int16_t pc_device; /* chip device ID, assigned by 70 chip vendor */ 71 u_int8_t pc_class; /* chip PCI class */ 72 u_int8_t pc_subclass; /* chip PCI subclass */ 73 u_int8_t pc_progif; /* chip PCI programming interface */ 74 u_int8_t pc_revid; /* chip revision ID */ 75 char pd_name[PCI_MAXNAMELEN + 1]; /* device name */ 76 u_long pd_unit; /* device unit number */ 77 }; 78 79 struct pci_match_conf { 80 struct pcisel pc_sel; /* domain+bus+slot+function */ 81 char pd_name[PCI_MAXNAMELEN + 1]; /* device name */ 82 u_long pd_unit; /* Unit number */ 83 u_int16_t pc_vendor; /* PCI Vendor ID */ 84 u_int16_t pc_device; /* PCI Device ID */ 85 u_int8_t pc_class; /* PCI class */ 86 pci_getconf_flags flags; /* Matching expression */ 87 }; 88 89 struct pci_conf_io { 90 u_int32_t pat_buf_len; /* pattern buffer length */ 91 u_int32_t num_patterns; /* number of patterns */ 92 struct pci_match_conf *patterns; /* pattern buffer */ 93 u_int32_t match_buf_len; /* match buffer length */ 94 u_int32_t num_matches; /* number of matches returned */ 95 struct pci_conf *matches; /* match buffer */ 96 u_int32_t offset; /* offset into device list */ 97 u_int32_t generation; /* device list generation */ 98 pci_getconf_status status; /* request status */ 99 }; 100 101 struct pci_io { 102 struct pcisel pi_sel; /* device to operate on */ 103 int pi_reg; /* configuration register to examine */ 104 int pi_width; /* width (in bytes) of read or write */ 105 u_int32_t pi_data; /* data to write or result of read */ 106 }; 107 108 struct pci_bar_io { 109 struct pcisel pbi_sel; /* device to operate on */ 110 int pbi_reg; /* starting address of BAR */ 111 int pbi_enabled; /* decoding enabled */ 112 uint64_t pbi_base; /* current value of BAR */ 113 uint64_t pbi_length; /* length of BAR */ 114 }; 115 116 struct pci_vpd_element { 117 char pve_keyword[2]; 118 uint8_t pve_flags; 119 uint8_t pve_datalen; 120 uint8_t pve_data[0]; 121 }; 122 123 #define PVE_FLAG_IDENT 0x01 /* Element is the string identifier */ 124 #define PVE_FLAG_RW 0x02 /* Element is read/write */ 125 126 #define PVE_NEXT(pve) \ 127 ((struct pci_vpd_element *)((char *)(pve) + \ 128 sizeof(struct pci_vpd_element) + (pve)->pve_datalen)) 129 130 struct pci_list_vpd_io { 131 struct pcisel plvi_sel; /* device to operate on */ 132 size_t plvi_len; /* size of the data area */ 133 struct pci_vpd_element *plvi_data; 134 }; 135 136 #define PCIOCGETCONF _IOWR('p', 5, struct pci_conf_io) 137 #define PCIOCREAD _IOWR('p', 2, struct pci_io) 138 #define PCIOCWRITE _IOWR('p', 3, struct pci_io) 139 #define PCIOCATTACHED _IOWR('p', 4, struct pci_io) 140 #define PCIOCGETBAR _IOWR('p', 6, struct pci_bar_io) 141 #define PCIOCLISTVPD _IOWR('p', 7, struct pci_list_vpd_io) 142 143 #endif /* !_SYS_PCIIO_H_ */ 144