1 /*- 2 * Copyright (c) 2000, 2001 Michael Smith 3 * Copyright (c) 2000 BSDi 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, this list of conditions and the following 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 AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * 6.7 : Hardware Abstraction 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <contrib/dev/acpica/include/acpi.h> 36 37 #include <machine/iodev.h> 38 #include <machine/pci_cfgreg.h> 39 40 extern int acpi_susp_bounce; 41 42 ACPI_STATUS 43 AcpiOsEnterSleep(UINT8 SleepState, UINT32 RegaValue, UINT32 RegbValue) 44 { 45 46 /* If testing device suspend only, back out of everything here. */ 47 if (acpi_susp_bounce) 48 return (AE_CTRL_TERMINATE); 49 50 return (AE_OK); 51 } 52 53 /* 54 * ACPICA's rather gung-ho approach to hardware resource ownership is a little 55 * troublesome insofar as there is no easy way for us to know in advance 56 * exactly which I/O resources it's going to want to use. 57 * 58 * In order to deal with this, we ignore resource ownership entirely, and simply 59 * use the native I/O space accessor functionality. This is Evil, but it works. 60 */ 61 62 ACPI_STATUS 63 AcpiOsReadPort(ACPI_IO_ADDRESS InPort, UINT32 *Value, UINT32 Width) 64 { 65 66 switch (Width) { 67 case 8: 68 *Value = iodev_read_1(InPort); 69 break; 70 case 16: 71 *Value = iodev_read_2(InPort); 72 break; 73 case 32: 74 *Value = iodev_read_4(InPort); 75 break; 76 } 77 78 return (AE_OK); 79 } 80 81 ACPI_STATUS 82 AcpiOsWritePort(ACPI_IO_ADDRESS OutPort, UINT32 Value, UINT32 Width) 83 { 84 85 switch (Width) { 86 case 8: 87 iodev_write_1(OutPort, Value); 88 break; 89 case 16: 90 iodev_write_2(OutPort, Value); 91 break; 92 case 32: 93 iodev_write_4(OutPort, Value); 94 break; 95 } 96 97 return (AE_OK); 98 } 99 100 ACPI_STATUS 101 AcpiOsReadPciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, UINT64 *Value, 102 UINT32 Width) 103 { 104 105 #ifdef __aarch64__ 106 /* ARM64TODO: Add pci support */ 107 return (AE_SUPPORT); 108 #else 109 if (Width == 64) 110 return (AE_SUPPORT); 111 112 if (!pci_cfgregopen()) 113 return (AE_NOT_EXIST); 114 115 *(UINT64 *)Value = pci_cfgregread(PciId->Bus, PciId->Device, 116 PciId->Function, Register, Width / 8); 117 118 return (AE_OK); 119 #endif 120 } 121 122 ACPI_STATUS 123 AcpiOsWritePciConfiguration (ACPI_PCI_ID *PciId, UINT32 Register, 124 UINT64 Value, UINT32 Width) 125 { 126 127 #ifdef __aarch64__ 128 /* ARM64TODO: Add pci support */ 129 return (AE_SUPPORT); 130 #else 131 if (Width == 64) 132 return (AE_SUPPORT); 133 134 if (!pci_cfgregopen()) 135 return (AE_NOT_EXIST); 136 137 pci_cfgregwrite(PciId->Bus, PciId->Device, PciId->Function, Register, 138 Value, Width / 8); 139 140 return (AE_OK); 141 #endif 142 } 143