diff options
Diffstat (limited to 'sys/dev/acpica/Osd/OsdHardware.c')
| -rw-r--r-- | sys/dev/acpica/Osd/OsdHardware.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/sys/dev/acpica/Osd/OsdHardware.c b/sys/dev/acpica/Osd/OsdHardware.c new file mode 100644 index 0000000..5897157 --- /dev/null +++ b/sys/dev/acpica/Osd/OsdHardware.c @@ -0,0 +1,157 @@ +/*- + * Copyright (c) 2000, 2001 Michael Smith + * Copyright (c) 2000 BSDi + * All rights reserved. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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. + * + * $FreeBSD$ + */ + +/* + * 6.7 : Hardware Abstraction + */ + +#include "acpi.h" + +#include <machine/bus_pio.h> +#include <machine/bus.h> +#include <machine/pci_cfgreg.h> + +/* + * ACPICA's rather gung-ho approach to hardware resource ownership is a little + * troublesome insofar as there is no easy way for us to know in advance + * exactly which I/O resources it's going to want to use. + * + * In order to deal with this, we ignore resource ownership entirely, and simply + * use the native I/O space accessor functionality. This is Evil, but it works. + * + * XXX use an intermediate #define for the tag/handle + */ + +#ifdef __i386__ +#define ACPI_BUS_SPACE_IO I386_BUS_SPACE_IO +#define ACPI_BUS_HANDLE 0 +#endif +#ifdef __ia64__ +#define ACPI_BUS_SPACE_IO IA64_BUS_SPACE_IO +#define ACPI_BUS_HANDLE 0 +#endif + +ACPI_STATUS +AcpiOsReadPort ( + ACPI_IO_ADDRESS InPort, + void *Value, + UINT32 Width) +{ + switch (Width) { + case 8: + *(u_int8_t *)Value = bus_space_read_1(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, InPort); + break; + case 16: + *(u_int16_t *)Value = bus_space_read_2(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, InPort); + break; + case 32: + *(u_int32_t *)Value = bus_space_read_4(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, InPort); + break; + default: + /* debug trap goes here */ + break; + } + + return(AE_OK); +} + +ACPI_STATUS +AcpiOsWritePort ( + ACPI_IO_ADDRESS OutPort, + ACPI_INTEGER Value, + UINT32 Width) +{ + switch (Width) { + case 8: + bus_space_write_1(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, OutPort, Value); + break; + case 16: + bus_space_write_2(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, OutPort, Value); + break; + case 32: + bus_space_write_4(ACPI_BUS_SPACE_IO, ACPI_BUS_HANDLE, OutPort, Value); + break; + default: + /* debug trap goes here */ + break; + } + + return(AE_OK); +} + +ACPI_STATUS +AcpiOsReadPciConfiguration ( + ACPI_PCI_ID *PciId, + UINT32 Register, + void *Value, + UINT32 Width) +{ + u_int32_t byte_width = Width / 8; + u_int32_t val; + + if (!pci_cfgregopen()) + return(AE_NOT_EXIST); + + val = pci_cfgregread(PciId->Bus, PciId->Device, PciId->Function, Register, byte_width); + switch (Width) { + case 8: + *(u_int8_t *)Value = val & 0xff; + break; + case 16: + *(u_int16_t *)Value = val & 0xffff; + break; + case 32: + *(u_int32_t *)Value = val; + break; + default: + /* debug trap goes here */ + break; + } + + + return(AE_OK); +} + + +ACPI_STATUS +AcpiOsWritePciConfiguration ( + ACPI_PCI_ID *PciId, + UINT32 Register, + ACPI_INTEGER Value, + UINT32 Width) +{ + u_int32_t byte_width = Width / 8; + + if (!pci_cfgregopen()) + return(AE_NOT_EXIST); + + pci_cfgregwrite(PciId->Bus, PciId->Device, PciId->Function, Register, Value, byte_width); + + return(AE_OK); +} |
