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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| /*- | ||
| * Copyright (c) 2022 Soren Schmidt <sos@deepcore.dk> | ||
| * 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. | ||
| */ | ||
|
|
||
| #include <sys/cdefs.h> | ||
| __FBSDID("$FreeBSD$"); | ||
|
|
||
| #include <sys/param.h> | ||
| #include <sys/kernel.h> | ||
| #include <sys/bus.h> | ||
| #include <sys/malloc.h> | ||
|
|
||
| #include <contrib/dev/acpica/include/acpi.h> | ||
|
|
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| #include <dev/acpica/acpivar.h> | ||
|
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| #include "acpi_subr.h" | ||
|
|
||
| static MALLOC_DEFINE(M_ACPISUBR, "acpisubr", "ACPI subrutines"); | ||
|
|
||
| static const uint8_t dsd_uuid[] = { | ||
| 0x14, 0xd8, 0xff, 0xda, 0xba, 0x6e, 0x8c, 0x4d, | ||
| 0x8a, 0x91, 0xbc, 0x9b, 0xbf, 0x4a, 0xa3, 0x01, | ||
| }; | ||
|
|
||
|
|
||
| ACPI_STATUS | ||
| acpi_dsd_property(ACPI_HANDLE handle, const char *property, ACPI_BUFFER *buf, ACPI_OBJECT_TYPE type, ACPI_OBJECT **ret) | ||
| { | ||
| ACPI_OBJECT *prop, *obj, *pobj; | ||
| ACPI_STATUS status; | ||
| int i; | ||
|
|
||
| status = AcpiEvaluateObjectTyped(handle, "_DSD", NULL, buf, ACPI_TYPE_PACKAGE); | ||
| if (ACPI_FAILURE(status)) | ||
| return status; | ||
|
|
||
| prop = NULL; | ||
| obj = (ACPI_OBJECT *)buf->Pointer; | ||
| for (i = 0; i < (obj->Package.Count - 1); i += 2) { | ||
| if (obj->Package.Elements[i].Buffer.Length == ACPI_UUID_LENGTH && | ||
| !bcmp(dsd_uuid, obj->Package.Elements[i].Buffer.Pointer, ACPI_UUID_LENGTH)) { | ||
| prop = &obj->Package.Elements[i + 1]; | ||
| break; | ||
| } | ||
| } | ||
| if (!prop) | ||
| return AE_NOT_FOUND; | ||
|
|
||
| for (i = 0; i < prop->Package.Count; i++) { | ||
| pobj = &prop->Package.Elements[i]; | ||
| if (pobj->Type != ACPI_TYPE_PACKAGE || pobj->Package.Count != 2) | ||
| continue; | ||
| if (pobj->Package.Elements[0].Type != ACPI_TYPE_STRING) | ||
| continue; | ||
| if (strcmp(pobj->Package.Elements[0].String.Pointer, property)) | ||
| continue; | ||
|
|
||
| if (pobj->Package.Elements[1].Type == type) { | ||
| *ret = &pobj->Package.Elements[1]; | ||
| return AE_OK; | ||
| } | ||
| else | ||
| return AE_TYPE; | ||
| break; | ||
| } | ||
| return AE_NOT_FOUND; | ||
| } | ||
|
|
||
| const struct acpi_compat_data * | ||
| acpi_dsd_search_compatible(device_t dev, const struct acpi_compat_data *compat) | ||
| { | ||
| const struct acpi_compat_data *pcompat = NULL; | ||
| ACPI_HANDLE handle = acpi_get_handle(dev); | ||
| ACPI_OBJECT *obj; | ||
| ACPI_BUFFER buf; | ||
| ACPI_STATUS status; | ||
| int i; | ||
|
|
||
| buf.Pointer = NULL; | ||
| buf.Length = ACPI_ALLOCATE_BUFFER; | ||
|
|
||
| /* single string _DSD */ | ||
| status = acpi_dsd_property(handle, "compatible", &buf, ACPI_TYPE_STRING, &obj); | ||
| if (ACPI_SUCCESS(status)) { | ||
| for (pcompat = compat; pcompat->acd_str; pcompat++) | ||
| if (!strcmp(obj->String.Pointer, pcompat->acd_str)) | ||
| break; | ||
| goto done; | ||
| } | ||
|
|
||
| if (buf.Pointer) | ||
| AcpiOsFree(buf.Pointer); | ||
| buf.Pointer = NULL; | ||
| buf.Length = ACPI_ALLOCATE_BUFFER; | ||
|
|
||
| /* Package of strings _DSD */ | ||
| status = acpi_dsd_property(handle, "compatible", &buf, ACPI_TYPE_PACKAGE, &obj); | ||
| if (ACPI_FAILURE(status)) { | ||
| goto done; | ||
| } | ||
| if (!obj->Package.Count) { | ||
| goto done; | ||
| } | ||
| for (i = 0; i < obj->Package.Count; i++) { | ||
| if (obj->Package.Elements[i].Type != ACPI_TYPE_STRING) | ||
| continue; | ||
| for (pcompat = compat; pcompat->acd_str; pcompat++) | ||
| if (!strcmp(obj->Package.Elements[i].String.Pointer, pcompat->acd_str)) | ||
| break; | ||
| if (pcompat->acd_str) | ||
| break; | ||
| } | ||
| done: | ||
| if (buf.Pointer) | ||
| AcpiOsFree(buf.Pointer); | ||
| return pcompat; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| /*- | ||
| * Copyright (c) 2022 Soren Schmidt <sos@deepcore.dk> | ||
| * 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. | ||
| */ | ||
|
|
||
| #include <sys/cdefs.h> | ||
| __FBSDID("$FreeBSD$"); | ||
|
|
||
| struct acpi_compat_data { | ||
| const char *acd_str; | ||
| uintptr_t acd_data; | ||
| }; | ||
|
|
||
| ACPI_STATUS acpi_dsd_property(ACPI_HANDLE handle, const char *property, ACPI_BUFFER *buf, ACPI_OBJECT_TYPE type, ACPI_OBJECT **ret); | ||
|
|
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| const struct acpi_compat_data *acpi_dsd_search_compatible(device_t, const struct acpi_compat_data *); |
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