| 1 | /* $NetBSD: OsdHardware.c,v 1.10 2016/01/26 22:52:14 christos Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright 2001 Wasabi Systems, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Written by Jason R. Thorpe for Wasabi Systems, Inc. |
| 8 | * |
| 9 | * Redistribution and use in source and binary forms, with or without |
| 10 | * modification, are permitted provided that the following conditions |
| 11 | * are met: |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer in the |
| 16 | * documentation and/or other materials provided with the distribution. |
| 17 | * 3. All advertising materials mentioning features or use of this software |
| 18 | * must display the following acknowledgement: |
| 19 | * This product includes software developed for the NetBSD Project by |
| 20 | * Wasabi Systems, Inc. |
| 21 | * 4. The name of Wasabi Systems, Inc. may not be used to endorse |
| 22 | * or promote products derived from this software without specific prior |
| 23 | * written permission. |
| 24 | * |
| 25 | * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND |
| 26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 27 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 28 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC |
| 29 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 32 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 33 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 34 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 35 | * POSSIBILITY OF SUCH DAMAGE. |
| 36 | */ |
| 37 | |
| 38 | /* |
| 39 | * OS Services Layer |
| 40 | * |
| 41 | * 6.7: Address Space Access: Port Input/Output |
| 42 | * 6.8: Address Space Access: Memory and Memory Mapped I/O |
| 43 | * 6.9: Address Space Access: PCI Configuration Space |
| 44 | */ |
| 45 | |
| 46 | #include <sys/cdefs.h> |
| 47 | __KERNEL_RCSID(0, "$NetBSD: OsdHardware.c,v 1.10 2016/01/26 22:52:14 christos Exp $" ); |
| 48 | |
| 49 | #include <sys/param.h> |
| 50 | #include <sys/device.h> |
| 51 | |
| 52 | #include <dev/acpi/acpica.h> |
| 53 | #include <dev/acpi/acpivar.h> |
| 54 | #include <dev/acpi/acpi_pci.h> |
| 55 | |
| 56 | #include <machine/acpi_machdep.h> |
| 57 | |
| 58 | /* |
| 59 | * ACPICA doesn't provide much in the way of letting us know which |
| 60 | * hardware resources it wants to use. We therefore have to resort |
| 61 | * to calling machinde-dependent code to do the access for us. |
| 62 | */ |
| 63 | |
| 64 | /* |
| 65 | * AcpiOsReadPort: |
| 66 | * |
| 67 | * Read a value from an input port. |
| 68 | */ |
| 69 | ACPI_STATUS |
| 70 | AcpiOsReadPort(ACPI_IO_ADDRESS Address, UINT32 *Value, UINT32 Width) |
| 71 | { |
| 72 | |
| 73 | switch (Width) { |
| 74 | case 8: |
| 75 | *Value = acpi_md_OsIn8(Address); |
| 76 | break; |
| 77 | |
| 78 | case 16: |
| 79 | *Value = acpi_md_OsIn16(Address); |
| 80 | break; |
| 81 | |
| 82 | case 32: |
| 83 | *Value = acpi_md_OsIn32(Address); |
| 84 | break; |
| 85 | |
| 86 | default: |
| 87 | return AE_BAD_PARAMETER; |
| 88 | } |
| 89 | |
| 90 | return AE_OK; |
| 91 | } |
| 92 | |
| 93 | /* |
| 94 | * AcpiOsWritePort: |
| 95 | * |
| 96 | * Write a value to an output port. |
| 97 | */ |
| 98 | ACPI_STATUS |
| 99 | AcpiOsWritePort(ACPI_IO_ADDRESS Address, UINT32 Value, UINT32 Width) |
| 100 | { |
| 101 | |
| 102 | switch (Width) { |
| 103 | case 8: |
| 104 | acpi_md_OsOut8(Address, Value); |
| 105 | break; |
| 106 | |
| 107 | case 16: |
| 108 | acpi_md_OsOut16(Address, Value); |
| 109 | break; |
| 110 | |
| 111 | case 32: |
| 112 | acpi_md_OsOut32(Address, Value); |
| 113 | break; |
| 114 | |
| 115 | default: |
| 116 | return AE_BAD_PARAMETER; |
| 117 | } |
| 118 | |
| 119 | return AE_OK; |
| 120 | } |
| 121 | |
| 122 | /* |
| 123 | * AcpiOsReadMemory: |
| 124 | * |
| 125 | * Read a value from a memory location. |
| 126 | */ |
| 127 | ACPI_STATUS |
| 128 | AcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address, UINT64 *Value, UINT32 Width) |
| 129 | { |
| 130 | void *LogicalAddress; |
| 131 | ACPI_STATUS rv = AE_OK; |
| 132 | |
| 133 | LogicalAddress = AcpiOsMapMemory(Address, Width / 8); |
| 134 | if (LogicalAddress == NULL) |
| 135 | return AE_NOT_EXIST; |
| 136 | |
| 137 | switch (Width) { |
| 138 | case 8: |
| 139 | *Value = *(volatile uint8_t *) LogicalAddress; |
| 140 | break; |
| 141 | |
| 142 | case 16: |
| 143 | *Value = *(volatile uint16_t *) LogicalAddress; |
| 144 | break; |
| 145 | |
| 146 | case 32: |
| 147 | *Value = *(volatile uint32_t *) LogicalAddress; |
| 148 | break; |
| 149 | |
| 150 | case 64: |
| 151 | *Value = *(volatile uint64_t *) LogicalAddress; |
| 152 | break; |
| 153 | |
| 154 | default: |
| 155 | rv = AE_BAD_PARAMETER; |
| 156 | } |
| 157 | |
| 158 | AcpiOsUnmapMemory(LogicalAddress, Width / 8); |
| 159 | |
| 160 | return rv; |
| 161 | } |
| 162 | |
| 163 | /* |
| 164 | * AcpiOsWriteMemory: |
| 165 | * |
| 166 | * Write a value to a memory location. |
| 167 | */ |
| 168 | ACPI_STATUS |
| 169 | AcpiOsWriteMemory(ACPI_PHYSICAL_ADDRESS Address, UINT64 Value, UINT32 Width) |
| 170 | { |
| 171 | void *LogicalAddress; |
| 172 | ACPI_STATUS rv = AE_OK; |
| 173 | |
| 174 | LogicalAddress = AcpiOsMapMemory(Address, Width / 8); |
| 175 | if (LogicalAddress == NULL) |
| 176 | return AE_NOT_FOUND; |
| 177 | |
| 178 | switch (Width) { |
| 179 | case 8: |
| 180 | *(volatile uint8_t *) LogicalAddress = Value; |
| 181 | break; |
| 182 | |
| 183 | case 16: |
| 184 | *(volatile uint16_t *) LogicalAddress = Value; |
| 185 | break; |
| 186 | |
| 187 | case 32: |
| 188 | *(volatile uint32_t *) LogicalAddress = Value; |
| 189 | break; |
| 190 | |
| 191 | case 64: |
| 192 | *(volatile uint64_t *) LogicalAddress = Value; |
| 193 | break; |
| 194 | |
| 195 | default: |
| 196 | rv = AE_BAD_PARAMETER; |
| 197 | } |
| 198 | |
| 199 | AcpiOsUnmapMemory(LogicalAddress, Width / 8); |
| 200 | |
| 201 | return rv; |
| 202 | } |
| 203 | |
| 204 | /* |
| 205 | * AcpiOsReadPciConfiguration: |
| 206 | * |
| 207 | * Read a value from a PCI configuration register. |
| 208 | */ |
| 209 | ACPI_STATUS |
| 210 | AcpiOsReadPciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, UINT64 *Value, |
| 211 | UINT32 Width) |
| 212 | { |
| 213 | pcitag_t tag; |
| 214 | pcireg_t tmp; |
| 215 | pci_chipset_tag_t pc = acpi_softc ? acpi_softc->sc_pc : NULL; |
| 216 | |
| 217 | /* XXX Need to deal with "segment" ("hose" in Alpha terminology). */ |
| 218 | |
| 219 | if (PciId->Bus >= 256 || PciId->Device >= 32 || PciId->Function >= 8) |
| 220 | return AE_BAD_PARAMETER; |
| 221 | |
| 222 | tag = pci_make_tag(pc, PciId->Bus, PciId->Device, PciId->Function); |
| 223 | tmp = pci_conf_read(pc, tag, Register & ~3); |
| 224 | |
| 225 | switch (Width) { |
| 226 | case 8: |
| 227 | *(uint8_t *) Value = (tmp >> ((Register & 3) * 8)) & 0xff; |
| 228 | break; |
| 229 | |
| 230 | case 16: |
| 231 | *(uint16_t *) Value = (tmp >> ((Register & 3) * 8)) & 0xffff; |
| 232 | break; |
| 233 | |
| 234 | case 32: |
| 235 | *(uint32_t *) Value = tmp; |
| 236 | break; |
| 237 | |
| 238 | default: |
| 239 | return AE_BAD_PARAMETER; |
| 240 | } |
| 241 | |
| 242 | return AE_OK; |
| 243 | } |
| 244 | |
| 245 | /* |
| 246 | * AcpiOsWritePciConfiguration: |
| 247 | * |
| 248 | * Write a value to a PCI configuration register. |
| 249 | */ |
| 250 | ACPI_STATUS |
| 251 | AcpiOsWritePciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, |
| 252 | ACPI_INTEGER Value, UINT32 Width) |
| 253 | { |
| 254 | pcitag_t tag; |
| 255 | pcireg_t tmp; |
| 256 | pci_chipset_tag_t pc = acpi_softc ? acpi_softc->sc_pc : NULL; |
| 257 | |
| 258 | /* XXX Need to deal with "segment" ("hose" in Alpha terminology). */ |
| 259 | |
| 260 | tag = pci_make_tag(pc, PciId->Bus, PciId->Device, PciId->Function); |
| 261 | |
| 262 | switch (Width) { |
| 263 | case 8: |
| 264 | tmp = pci_conf_read(pc, tag, Register & ~3); |
| 265 | tmp &= ~(0xff << ((Register & 3) * 8)); |
| 266 | tmp |= (Value << ((Register & 3) * 8)); |
| 267 | break; |
| 268 | |
| 269 | case 16: |
| 270 | tmp = pci_conf_read(pc, tag, Register & ~3); |
| 271 | tmp &= ~(0xffff << ((Register & 3) * 8)); |
| 272 | tmp |= (Value << ((Register & 3) * 8)); |
| 273 | break; |
| 274 | |
| 275 | case 32: |
| 276 | tmp = Value; |
| 277 | break; |
| 278 | |
| 279 | default: |
| 280 | return AE_BAD_PARAMETER; |
| 281 | } |
| 282 | |
| 283 | pci_conf_write(pc, tag, Register & ~3, tmp); |
| 284 | |
| 285 | return AE_OK; |
| 286 | } |
| 287 | |