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 int (*acpi_prepare_sleep)(uint8_t state, uint32_t a, uint32_t b, bool ext); 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 if (acpi_prepare_sleep != NULL) 51 { 52 int ret = acpi_prepare_sleep(SleepState, RegaValue, RegbValue, 53 ACPI_REDUCED_HARDWARE ? true : AcpiGbl_ReducedHardware); 54 55 if (ret < 0) 56 return (AE_ERROR); 57 if (ret > 0) 58 return (AE_CTRL_TERMINATE); 59 } 60 61 return (AE_OK); 62 } 63 64 /* 65 * ACPICA's rather gung-ho approach to hardware resource ownership is a little 66 * troublesome insofar as there is no easy way for us to know in advance 67 * exactly which I/O resources it's going to want to use. 68 * 69 * In order to deal with this, we ignore resource ownership entirely, and simply 70 * use the native I/O space accessor functionality. This is Evil, but it works. 71 */ 72 73 ACPI_STATUS 74 AcpiOsReadPort(ACPI_IO_ADDRESS InPort, UINT32 *Value, UINT32 Width) 75 { 76 77 switch (Width) { 78 case 8: 79 *Value = iodev_read_1(InPort); 80 break; 81 case 16: 82 *Value = iodev_read_2(InPort); 83 break; 84 case 32: 85 *Value = iodev_read_4(InPort); 86 break; 87 } 88 89 return (AE_OK); 90 } 91 92 ACPI_STATUS 93 AcpiOsWritePort(ACPI_IO_ADDRESS OutPort, UINT32 Value, UINT32 Width) 94 { 95 96 switch (Width) { 97 case 8: 98 iodev_write_1(OutPort, Value); 99 break; 100 case 16: 101 iodev_write_2(OutPort, Value); 102 break; 103 case 32: 104 iodev_write_4(OutPort, Value); 105 break; 106 } 107 108 return (AE_OK); 109 } 110 111 ACPI_STATUS 112 AcpiOsReadPciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, UINT64 *Value, 113 UINT32 Width) 114 { 115 116 #ifdef __aarch64__ 117 /* ARM64TODO: Add pci support */ 118 return (AE_SUPPORT); 119 #else 120 if (Width == 64) 121 return (AE_SUPPORT); 122 123 if (!pci_cfgregopen()) 124 return (AE_NOT_EXIST); 125 126 *(UINT64 *)Value = pci_cfgregread(PciId->Segment, PciId->Bus, PciId->Device, 127 PciId->Function, Register, Width / 8); 128 129 return (AE_OK); 130 #endif 131 } 132 133 ACPI_STATUS 134 AcpiOsWritePciConfiguration (ACPI_PCI_ID *PciId, UINT32 Register, 135 UINT64 Value, UINT32 Width) 136 { 137 138 #ifdef __aarch64__ 139 /* ARM64TODO: Add pci support */ 140 return (AE_SUPPORT); 141 #else 142 if (Width == 64) 143 return (AE_SUPPORT); 144 145 if (!pci_cfgregopen()) 146 return (AE_NOT_EXIST); 147 148 pci_cfgregwrite(PciId->Segment, PciId->Bus, PciId->Device, PciId->Function, 149 Register, Value, Width / 8); 150 151 return (AE_OK); 152 #endif 153 } 154