core.cxxm

/// SPDX-License-Identifier: Apache 2.0
/// @file diag.cxxm
/// @brief idiomatic C++23 DIAG 8 hypervisor console driver.
 
export module drivers.console.diag.core;
import zxfoundation.sys.printk.types;
import std;
 
export {
 
namespace drivers::console::diag {
 
    /// @brief Flush ASCII content to the DIAG 8 console.
    /// @param[in] s The ASCII string view to transmit.
    auto write(std::string_view s) noexcept -> void;
 
    /// @brief Initializer for the DIAG console backend.
    auto init() noexcept -> void {}
 
    /// @brief Global printk backend for the DIAG 8 console.
    constexpr zxfoundation::sys::printk::printk_backend
    diag_hv_con_printk_backend {
        .name   = "diag_hv_con",
        .emit   = write,
        .init   = init,
        .active = false
    };
 
    /// @brief Retrieve the DIAG 8 console backend reference.
    consteval auto get_backend() noexcept -> const zxfoundation::sys::printk::printk_backend& {
        return diag_hv_con_printk_backend;
    }
 
} // namespace drivers::console::diag
 
} // end export