diff options
Diffstat (limited to 'sys/include')
| -rw-r--r-- | sys/include/dev/timer/hpet.h | 38 | ||||
| -rw-r--r-- | sys/include/firmware/acpi/tables.h | 26 |
2 files changed, 62 insertions, 2 deletions
diff --git a/sys/include/dev/timer/hpet.h b/sys/include/dev/timer/hpet.h new file mode 100644 index 0000000..513444e --- /dev/null +++ b/sys/include/dev/timer/hpet.h @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2023 Ian Marco Moffett and the VegaOS 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 VegaOS 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 _TIMER_HPET_H_ +#define _TIMER_HPET_H_ + +#include <sys/types.h> + +int hpet_init(void); +void hpet_msleep(size_t ms); + +#endif /* !_TIMER_HPET_H_ */ diff --git a/sys/include/firmware/acpi/tables.h b/sys/include/firmware/acpi/tables.h index c145e90..2d65f46 100644 --- a/sys/include/firmware/acpi/tables.h +++ b/sys/include/firmware/acpi/tables.h @@ -51,7 +51,7 @@ 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 */ + uint8_t revision; /* Revision of the structure */ uint32_t rsdt_addr; /* RSDT physical address */ /* Reserved if revision < 2 */ @@ -61,7 +61,7 @@ struct __packed acpi_rsdp { uint8_t reserved[3]; }; -/* +/* * XSDT or RSDT depending * on what revision the header * says. @@ -105,4 +105,26 @@ struct __packed interrupt_override { 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 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_ */ |