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 #include <contrib/dev/acpica/include/acpi.h> 34 35 #include <machine/iodev.h> 36 #include <machine/pci_cfgreg.h> 37 38 extern int acpi_susp_bounce; 39 40 ACPI_STATUS 41 AcpiOsEnterSleep(UINT8 SleepState, UINT32 RegaValue, UINT32 RegbValue) 42 { 43 44 /* If testing device suspend only, back out of everything here. */ 45 if (acpi_susp_bounce) 46 return (AE_CTRL_TERMINATE); 47 48 return (AE_OK); 49 } 50 51 /* 52 * ACPICA's rather gung-ho approach to hardware resource ownership is a little 53 * troublesome insofar as there is no easy way for us to know in advance 54 * exactly which I/O resources it's going to want to use. 55 * 56 * In order to deal with this, we ignore resource ownership entirely, and simply 57 * use the native I/O space accessor functionality. This is Evil, but it works. 58 */ 59 60 ACPI_STATUS 61 AcpiOsReadPort(ACPI_IO_ADDRESS InPort, UINT32 *Value, UINT32 Width) 62 { 63 64 switch (Width) { 65 case 8: 66 *Value = iodev_read_1(InPort); 67 break; 68 case 16: 69 *Value = iodev_read_2(InPort); 70 break; 71 case 32: 72 *Value = iodev_read_4(InPort); 73 break; 74 } 75 76 return (AE_OK); 77 } 78 79 ACPI_STATUS 80 AcpiOsWritePort(ACPI_IO_ADDRESS OutPort, UINT32 Value, UINT32 Width) 81 { 82 83 switch (Width) { 84 case 8: 85 iodev_write_1(OutPort, Value); 86 break; 87 case 16: 88 iodev_write_2(OutPort, Value); 89 break; 90 case 32: 91 iodev_write_4(OutPort, Value); 92 break; 93 } 94 95 return (AE_OK); 96 } 97 98 ACPI_STATUS 99 AcpiOsReadPciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, UINT64 *Value, 100 UINT32 Width) 101 { 102 103 #ifdef __aarch64__ 104 /* ARM64TODO: Add pci support */ 105 return (AE_SUPPORT); 106 #else 107 if (Width == 64) 108 return (AE_SUPPORT); 109 110 if (!pci_cfgregopen()) 111 return (AE_NOT_EXIST); 112 113 *(UINT64 *)Value = pci_cfgregread(PciId->Bus, PciId->Device, 114 PciId->Function, Register, Width / 8); 115 116 return (AE_OK); 117 #endif 118 } 119 120 ACPI_STATUS 121 AcpiOsWritePciConfiguration (ACPI_PCI_ID *PciId, UINT32 Register, 122 UINT64 Value, UINT32 Width) 123 { 124 125 #ifdef __aarch64__ 126 /* ARM64TODO: Add pci support */ 127 return (AE_SUPPORT); 128 #else 129 if (Width == 64) 130 return (AE_SUPPORT); 131 132 if (!pci_cfgregopen()) 133 return (AE_NOT_EXIST); 134 135 pci_cfgregwrite(PciId->Bus, PciId->Device, PciId->Function, Register, 136 Value, Width / 8); 137 138 return (AE_OK); 139 #endif 140 } 141