summaryrefslogtreecommitdiff
path: root/sys/include
diff options
context:
space:
mode:
authorIan Moffett <ian@osmora.org>2024-06-04 15:50:57 -0400
committerIan Moffett <ian@osmora.org>2024-06-04 15:53:44 -0400
commit996e41f4d86d9369d62700383ab090bdba2be9a7 (patch)
tree0c690cc286a8a8d3f4bb524b7c9f4ea8bfaa2c62 /sys/include
parentd6f85b7c3f4c4d28d1a80799618535786af24b8f (diff)
kernel: Add initial ACPI code
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/include')
-rw-r--r--sys/include/dev/acpi/acpi.h36
-rw-r--r--sys/include/dev/acpi/acpivar.h40
-rw-r--r--sys/include/dev/acpi/tables.h130
3 files changed, 206 insertions, 0 deletions
diff --git a/sys/include/dev/acpi/acpi.h b/sys/include/dev/acpi/acpi.h
new file mode 100644
index 0000000..4c5b7d9
--- /dev/null
+++ b/sys/include/dev/acpi/acpi.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * 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.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+ */
+
+#ifndef _ACPI_H_
+#define _ACPI_H_
+
+void *acpi_query(const char *query);
+void acpi_init(void);
+
+#endif /* !_ACPI_H_ */
diff --git a/sys/include/dev/acpi/acpivar.h b/sys/include/dev/acpi/acpivar.h
new file mode 100644
index 0000000..9a37dfb
--- /dev/null
+++ b/sys/include/dev/acpi/acpivar.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * 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.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+ */
+
+#ifndef _ACPI_ACPIVAR_H_
+#define _ACPI_ACPIVAR_H_
+
+#include <sys/types.h>
+#include <dev/acpi/tables.h>
+
+uint8_t acpi_checksum(struct acpi_header *hdr);
+struct acpi_root_sdt *acpi_get_root_sdt(void);
+size_t acpi_get_root_sdt_len(void);
+
+#endif /* !_ACPI_ACPIVAR_H_ */
diff --git a/sys/include/dev/acpi/tables.h b/sys/include/dev/acpi/tables.h
new file mode 100644
index 0000000..d5bfd52
--- /dev/null
+++ b/sys/include/dev/acpi/tables.h
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * 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.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+ */
+
+#ifndef _ACPI_TABLES_H_
+#define _ACPI_TABLES_H_
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+#define OEMID_SIZE 6
+
+struct __packed acpi_header {
+ char signature[4]; /* ASCII signature string */
+ uint32_t length; /* Length of table in bytes */
+ uint8_t revision; /* Revision of the structure */
+ uint8_t checksum; /* Checksum of the header */
+ char oemid[OEMID_SIZE]; /* OEM-supplied string that IDs the OEM */
+ char oem_table_id[8]; /* OEM-supplied string (used by OEM) */
+ uint32_t oem_revision; /* OEM-supplied revision number */
+ uint32_t creator_id; /* Vendor ID of creator utility */
+ uint32_t creator_revision; /* Revision of creator utility */
+};
+
+struct __packed acpi_rsdp {
+ uint64_t signature; /* RSD PTR */
+ uint8_t checksum; /* Structure checksum */
+ char oemid[OEMID_SIZE]; /* OEM-supplied string that IDs the OEM */
+ uint8_t revision; /* Revision of the structure */
+ uint32_t rsdt_addr; /* RSDT physical address */
+
+ /* Reserved if revision < 2 */
+ uint32_t length; /* Length of table in bytes */
+ uint64_t xsdt_addr; /* XSDT physical address */
+ uint8_t ext_checksum; /* Extended checksum */
+ uint8_t reserved[3];
+};
+
+/*
+ * XSDT or RSDT depending
+ * on what revision the header
+ * says.
+ */
+struct __packed acpi_root_sdt {
+ struct acpi_header hdr;
+ uint32_t tables[];
+};
+
+struct __packed acpi_madt {
+ struct acpi_header hdr;
+ uint32_t lapic_addr;
+ uint32_t flags;
+};
+
+struct __packed apic_header {
+ uint8_t type;
+ uint8_t length;
+};
+
+struct __packed local_apic {
+ struct apic_header hdr;
+ uint8_t processor_id;
+ uint8_t apic_id;
+ uint32_t flags;
+};
+
+struct __packed ioapic {
+ struct apic_header hdr;
+ uint8_t ioapic_id;
+ uint8_t reserved;
+ uint32_t ioapic_addr;
+ uint32_t gsi_base;
+};
+
+struct __packed interrupt_override {
+ struct apic_header hdr;
+ uint8_t bus;
+ uint8_t source; /* IRQ */
+ uint32_t interrupt; /* GSI */
+ uint16_t flags;
+};
+
+struct __packed acpi_gas {
+ uint8_t address_space_id;
+ uint8_t register_bit_width;
+ uint8_t register_bit_offset;
+ uint8_t reserved;
+ uint64_t address;
+};
+
+struct __packed acpi_hpet {
+ struct acpi_header hdr;
+ uint8_t hardware_rev_id;
+ uint8_t comparator_count : 5;
+ uint8_t counter_size : 1;
+ uint8_t reserved : 1;
+ uint8_t legacy_replacement : 1;
+ uint16_t pci_vendor_id;
+ struct acpi_gas gas;
+ uint8_t hpet_number;
+ uint16_t minimum_tick;
+ uint8_t page_protection;
+};
+
+#endif /* _ACPI_TABLES_H_ */