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