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> 10*770b2afaSEtienne Carriere #include <tee_api_types.h> 11*770b2afaSEtienne 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 21*770b2afaSEtienne Carriere /* 22*770b2afaSEtienne Carriere * Get console info from a reacheable DTB. Check the embedded DTB and fall 23*770b2afaSEtienne Carriere * back to the external DTB. 24*770b2afaSEtienne Carriere * 25*770b2afaSEtienne Carriere * If the DTB does not specify a chosen (or secure-chosen) node, we assume 26*770b2afaSEtienne Carriere * DTB does not provide specific console directive. Early console may remain. 27*770b2afaSEtienne Carriere * If the DTB does not specify any console in the chosen (or secure-chosen) 28*770b2afaSEtienne Carriere * node, we assume there is no console. Early console would be disabled. 29*770b2afaSEtienne Carriere * 30*770b2afaSEtienne Carriere * @fdt_out: Output DTB address where console directive is found 31*770b2afaSEtienne Carriere * @offs_out: Output offset in the DTB where console directive is found 32*770b2afaSEtienne Carriere * @path_out: Output string configuration of the console from in the DTB 33*770b2afaSEtienne Carriere * @params_out: Output console parameters found from the DTB 34*770b2afaSEtienne Carriere * 35*770b2afaSEtienne Carriere * Return a TEE_Result compliant return value 36*770b2afaSEtienne Carriere * 37*770b2afaSEtienne Carriere */ 38*770b2afaSEtienne Carriere TEE_Result get_console_node_from_dt(void **fdt_out, int *offs_out, 39*770b2afaSEtienne Carriere const char **path_out, 40*770b2afaSEtienne Carriere const char **params_out); 41*770b2afaSEtienne Carriere 42*770b2afaSEtienne Carriere /* 43*770b2afaSEtienne Carriere * Check if the /secure-chosen or /chosen node in the DT contains an 44*770b2afaSEtienne Carriere * stdout-path value for which we have a compatible driver. If so, switch 45*770b2afaSEtienne Carriere * the console to this device. 46*770b2afaSEtienne Carriere */ 472f82082fSEdison Ai void configure_console_from_dt(void); 484dc31c52SJerome Forissier #else 492f82082fSEdison Ai static inline void configure_console_from_dt(void) 504dc31c52SJerome Forissier {} 514dc31c52SJerome Forissier #endif /* !CFG_DT */ 524dc31c52SJerome Forissier 534de4bebcSJens Wiklander #endif /* CONSOLE_H */ 544de4bebcSJens Wiklander 55