uart.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef SOC_INTEL_COMMON_BLOCK_UART_H
#define SOC_INTEL_COMMON_BLOCK_UART_H
 
#include <console/uart.h>
#include <device/device.h>
#include <stdint.h>
 
/*
 * While using this common UART block for any SOC following is expected from soc
 * 1. SOC will define proper UART_BASE which is base address for UART console.
 * 2. SOC will return correct device pointer based on console index
 * 3. SOC will allow common code to set UART into legacy mode if supported.
 */
 
/*
 * Check if UART debug controller is initialized
 * Returns:
 * true = If debug controller PCI config space is initialized and device is
 *        out of reset
 * false = otherwise
 */
bool uart_is_controller_initialized(void);
 
/*
 * Check if dev corresponds to UART debug port controller.
 *
 * Returns:
 * true: UART dev is debug port
 * false: otherwise
 */
bool uart_is_debug_controller(struct device *dev);
 
/*
 * BootBlock pre initialization of UART console
 */
void uart_bootblock_init(void);
 
/*
 * Get UART debug controller device structure
 *
 * Returns:
 * Pointer to device structure = If device has a UART debug controller.
 * NULL = otherwise
 */
const struct device *uart_get_device(void);
 
#endif  /* SOC_INTEL_COMMON_BLOCK_UART_H */