11bb92983SJerome Forissier /* SPDX-License-Identifier: BSD-2-Clause */ 24de4bebcSJens Wiklander /* 34de4bebcSJens Wiklander * Copyright (c) 2014, Linaro Limited 44de4bebcSJens Wiklander */ 54de4bebcSJens Wiklander 64de4bebcSJens Wiklander #ifndef CONSOLE_H 74de4bebcSJens Wiklander #define CONSOLE_H 84de4bebcSJens Wiklander 94dc31c52SJerome Forissier #include <compiler.h> 10770b2afaSEtienne Carriere #include <tee_api_types.h> 11770b2afaSEtienne Carriere 124dc31c52SJerome Forissier 136ef34537SSY Chiu void console_init(void); 144de4bebcSJens Wiklander void console_putc(int ch); 15db886a7fSJerome Forissier void console_flush(void); 164de4bebcSJens Wiklander 17756aea59SJerome Forissier struct serial_chip; 18756aea59SJerome Forissier void register_serial_console(struct serial_chip *chip); 19756aea59SJerome Forissier 204dc31c52SJerome Forissier #ifdef CFG_DT 21770b2afaSEtienne Carriere /* 22770b2afaSEtienne Carriere * Get console info from a reacheable DTB. Check the embedded DTB and fall 23770b2afaSEtienne Carriere * back to the external DTB. 24770b2afaSEtienne Carriere * 25770b2afaSEtienne Carriere * If the DTB does not specify a chosen (or secure-chosen) node, we assume 26770b2afaSEtienne Carriere * DTB does not provide specific console directive. Early console may remain. 27770b2afaSEtienne Carriere * If the DTB does not specify any console in the chosen (or secure-chosen) 28770b2afaSEtienne Carriere * node, we assume there is no console. Early console would be disabled. 29770b2afaSEtienne Carriere * 30770b2afaSEtienne Carriere * @fdt_out: Output DTB address where console directive is found 31770b2afaSEtienne Carriere * @offs_out: Output offset in the DTB where console directive is found 32*d2c717b2SJerome Forissier * @path_out: Output string configuration of the console from the DTB. 33*d2c717b2SJerome Forissier * (*path_out) shall be freed using nex_free(). 34*d2c717b2SJerome Forissier * @params_out: Output console parameters found from the DTB. 35*d2c717b2SJerome Forissier * (*params_out) shall be freed using nex_free(). 36770b2afaSEtienne Carriere * 37770b2afaSEtienne Carriere * Return a TEE_Result compliant return value 38770b2afaSEtienne Carriere * 39770b2afaSEtienne Carriere */ 40286c31d4SEtienne Carriere TEE_Result get_console_node_from_dt(void *fdt, int *offs_out, 41*d2c717b2SJerome Forissier char **path_out, char **params_out); 42770b2afaSEtienne Carriere 43770b2afaSEtienne Carriere /* 44770b2afaSEtienne Carriere * Check if the /secure-chosen or /chosen node in the DT contains an 45770b2afaSEtienne Carriere * stdout-path value for which we have a compatible driver. If so, switch 46770b2afaSEtienne Carriere * the console to this device. 47770b2afaSEtienne Carriere */ 482f82082fSEdison Ai void configure_console_from_dt(void); 494dc31c52SJerome Forissier #else 502f82082fSEdison Ai static inline void configure_console_from_dt(void) 514dc31c52SJerome Forissier {} 524dc31c52SJerome Forissier #endif /* !CFG_DT */ 534dc31c52SJerome Forissier 544de4bebcSJens Wiklander #endif /* CONSOLE_H */ 554de4bebcSJens Wiklander 56