/* $NetBSD: OsdHardware.c,v 1.11 2019/02/15 20:48:57 kamil Exp $ */ /* * Copyright 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Jason R. Thorpe for Wasabi Systems, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * OS Services Layer * * 6.7: Address Space Access: Port Input/Output * 6.8: Address Space Access: Memory and Memory Mapped I/O * 6.9: Address Space Access: PCI Configuration Space */ #include __KERNEL_RCSID(0, "$NetBSD: OsdHardware.c,v 1.11 2019/02/15 20:48:57 kamil Exp $"); #include #include #include #include #include #include /* * ACPICA doesn't provide much in the way of letting us know which * hardware resources it wants to use. We therefore have to resort * to calling machinde-dependent code to do the access for us. */ /* * AcpiOsReadPort: * * Read a value from an input port. */ ACPI_STATUS AcpiOsReadPort(ACPI_IO_ADDRESS Address, UINT32 *Value, UINT32 Width) { switch (Width) { case 8: *Value = acpi_md_OsIn8(Address); break; case 16: *Value = acpi_md_OsIn16(Address); break; case 32: *Value = acpi_md_OsIn32(Address); break; default: return AE_BAD_PARAMETER; } return AE_OK; } /* * AcpiOsWritePort: * * Write a value to an output port. */ ACPI_STATUS AcpiOsWritePort(ACPI_IO_ADDRESS Address, UINT32 Value, UINT32 Width) { switch (Width) { case 8: acpi_md_OsOut8(Address, Value); break; case 16: acpi_md_OsOut16(Address, Value); break; case 32: acpi_md_OsOut32(Address, Value); break; default: return AE_BAD_PARAMETER; } return AE_OK; } /* * AcpiOsReadMemory: * * Read a value from a memory location. */ ACPI_STATUS AcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address, UINT64 *Value, UINT32 Width) { void *LogicalAddress; ACPI_STATUS rv = AE_OK; LogicalAddress = AcpiOsMapMemory(Address, Width / 8); if (LogicalAddress == NULL) return AE_NOT_EXIST; switch (Width) { case 8: *Value = *(volatile uint8_t *) LogicalAddress; break; case 16: *Value = *(volatile uint16_t *) LogicalAddress; break; case 32: *Value = *(volatile uint32_t *) LogicalAddress; break; case 64: *Value = *(volatile uint64_t *) LogicalAddress; break; default: rv = AE_BAD_PARAMETER; } AcpiOsUnmapMemory(LogicalAddress, Width / 8); return rv; } /* * AcpiOsWriteMemory: * * Write a value to a memory location. */ ACPI_STATUS AcpiOsWriteMemory(ACPI_PHYSICAL_ADDRESS Address, UINT64 Value, UINT32 Width) { void *LogicalAddress; ACPI_STATUS rv = AE_OK; LogicalAddress = AcpiOsMapMemory(Address, Width / 8); if (LogicalAddress == NULL) return AE_NOT_FOUND; switch (Width) { case 8: *(volatile uint8_t *) LogicalAddress = Value; break; case 16: *(volatile uint16_t *) LogicalAddress = Value; break; case 32: *(volatile uint32_t *) LogicalAddress = Value; break; case 64: *(volatile uint64_t *) LogicalAddress = Value; break; default: rv = AE_BAD_PARAMETER; } AcpiOsUnmapMemory(LogicalAddress, Width / 8); return rv; } /* * AcpiOsReadPciConfiguration: * * Read a value from a PCI configuration register. */ ACPI_STATUS AcpiOsReadPciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, UINT64 *Value, UINT32 Width) { pcitag_t tag; pcireg_t tmp; pci_chipset_tag_t pc = acpi_softc ? acpi_softc->sc_pc : NULL; /* XXX Need to deal with "segment" ("hose" in Alpha terminology). */ if (PciId->Bus >= 256 || PciId->Device >= 32 || PciId->Function >= 8) return AE_BAD_PARAMETER; tag = pci_make_tag(pc, PciId->Bus, PciId->Device, PciId->Function); tmp = pci_conf_read(pc, tag, Register & ~3); switch (Width) { case 8: *(uint8_t *) Value = (tmp >> ((Register & 3) * 8)) & 0xff; break; case 16: *(uint16_t *) Value = (tmp >> ((Register & 3) * 8)) & 0xffff; break; case 32: *(uint32_t *) Value = tmp; break; default: return AE_BAD_PARAMETER; } return AE_OK; } /* * AcpiOsWritePciConfiguration: * * Write a value to a PCI configuration register. */ ACPI_STATUS AcpiOsWritePciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, ACPI_INTEGER Value, UINT32 Width) { pcitag_t tag; pcireg_t tmp; pci_chipset_tag_t pc = acpi_softc ? acpi_softc->sc_pc : NULL; /* XXX Need to deal with "segment" ("hose" in Alpha terminology). */ tag = pci_make_tag(pc, PciId->Bus, PciId->Device, PciId->Function); switch (Width) { case 8: tmp = pci_conf_read(pc, tag, Register & ~3); tmp &= ~(0xffu << ((Register & 3) * 8)); tmp |= (Value << ((Register & 3) * 8)); break; case 16: tmp = pci_conf_read(pc, tag, Register & ~3); tmp &= ~(0xffffu << ((Register & 3) * 8)); tmp |= (Value << ((Register & 3) * 8)); break; case 32: tmp = Value; break; default: return AE_BAD_PARAMETER; } pci_conf_write(pc, tag, Register & ~3, tmp); return AE_OK; }