1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2014, Linaro Limited 4 */ 5 6 #ifndef __CONSOLE_H 7 #define __CONSOLE_H 8 9 #include <compiler.h> 10 #include <tee_api_types.h> 11 12 13 void console_init(void); 14 void console_putc(int ch); 15 void console_flush(void); 16 17 void plat_console_init(void); 18 19 struct serial_chip; 20 void register_serial_console(struct serial_chip *chip); 21 22 #ifdef CFG_DT 23 /* 24 * Get console info from a reacheable DTB. Check the embedded DTB and fall 25 * back to the external DTB. 26 * 27 * If the DTB does not specify a chosen (or secure-chosen) node, we assume 28 * DTB does not provide specific console directive. Early console may remain. 29 * If the DTB does not specify any console in the chosen (or secure-chosen) 30 * node, we assume there is no console. Early console would be disabled. 31 * 32 * @fdt_out: Output DTB address where console directive is found 33 * @offs_out: Output offset in the DTB where console directive is found 34 * @path_out: Output string configuration of the console from the DTB. 35 * (*path_out) shall be freed using nex_free(). 36 * @params_out: Output console parameters found from the DTB. 37 * (*params_out) shall be freed using nex_free(). 38 * 39 * Return a TEE_Result compliant return value 40 * 41 */ 42 TEE_Result get_console_node_from_dt(void *fdt, int *offs_out, 43 char **path_out, char **params_out); 44 45 /* 46 * Check if the /secure-chosen or /chosen node in the DT contains an 47 * stdout-path value for which we have a compatible driver. If so, switch 48 * the console to this device. 49 */ 50 void configure_console_from_dt(void); 51 #else configure_console_from_dt(void)52static inline void configure_console_from_dt(void) 53 {} 54 #endif /* !CFG_DT */ 55 56 #endif /* __CONSOLE_H */ 57 58