| // Copyright 2023 The Fuchsia Authors |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #include <lib/root_resource_filter.h> |
| #include <lib/uart/uart.h> |
| #include <lib/zbi-format/driver-config.h> |
| #include <zircon/syscalls/resource.h> |
| |
| #include <cstdint> |
| |
| #include <arch/defines.h> |
| #include <arch/x86/apic.h> |
| #include <ktl/optional.h> |
| #include <platform/uart.h> |
| #include <vm/physmap.h> |
| |
| ktl::optional<uint32_t> PlatformUartGetIrqNumber(uint32_t irq_num) { |
| if (irq_num == 0) { |
| return ktl::nullopt; |
| } |
| return apic_io_isa_to_global(static_cast<uint8_t>(irq_num)); |
| } |
