mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 02:51:00 +00:00
185f812c41
Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
1116 lines
24 KiB
C
1116 lines
24 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000
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* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
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*/
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#include <common.h>
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#include <console.h>
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#include <debug_uart.h>
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#include <dm.h>
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#include <env.h>
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#include <stdarg.h>
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#include <iomux.h>
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#include <malloc.h>
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#include <mapmem.h>
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#include <os.h>
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#include <serial.h>
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#include <stdio_dev.h>
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#include <exports.h>
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#include <env_internal.h>
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#include <watchdog.h>
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#include <asm/global_data.h>
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#include <linux/delay.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int on_console(const char *name, const char *value, enum env_op op,
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int flags)
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{
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int console = -1;
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/* Check for console redirection */
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if (strcmp(name, "stdin") == 0)
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console = stdin;
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else if (strcmp(name, "stdout") == 0)
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console = stdout;
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else if (strcmp(name, "stderr") == 0)
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console = stderr;
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/* if not actually setting a console variable, we don't care */
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if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
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return 0;
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switch (op) {
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case env_op_create:
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case env_op_overwrite:
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if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
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if (iomux_doenv(console, value))
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return 1;
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} else {
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/* Try assigning specified device */
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if (console_assign(console, value) < 0)
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return 1;
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}
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return 0;
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case env_op_delete:
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if ((flags & H_FORCE) == 0)
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printf("Can't delete \"%s\"\n", name);
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return 1;
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default:
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return 0;
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}
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}
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U_BOOT_ENV_CALLBACK(console, on_console);
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#ifdef CONFIG_SILENT_CONSOLE
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static int on_silent(const char *name, const char *value, enum env_op op,
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int flags)
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{
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if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET))
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if (flags & H_INTERACTIVE)
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return 0;
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if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC))
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if ((flags & H_INTERACTIVE) == 0)
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return 0;
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if (value != NULL)
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gd->flags |= GD_FLG_SILENT;
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else
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gd->flags &= ~GD_FLG_SILENT;
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return 0;
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}
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U_BOOT_ENV_CALLBACK(silent, on_silent);
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#endif
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#ifdef CONFIG_CONSOLE_RECORD
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/* helper function: access to gd->console_out and gd->console_in */
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static void console_record_putc(const char c)
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{
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if (!(gd->flags & GD_FLG_RECORD))
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return;
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if (gd->console_out.start &&
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!membuff_putbyte((struct membuff *)&gd->console_out, c))
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gd->flags |= GD_FLG_RECORD_OVF;
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}
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static void console_record_puts(const char *s)
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{
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if (!(gd->flags & GD_FLG_RECORD))
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return;
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if (gd->console_out.start) {
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int len = strlen(s);
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if (membuff_put((struct membuff *)&gd->console_out, s, len) !=
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len)
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gd->flags |= GD_FLG_RECORD_OVF;
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}
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}
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static int console_record_getc(void)
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{
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if (!(gd->flags & GD_FLG_RECORD))
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return -1;
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if (!gd->console_in.start)
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return -1;
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return membuff_getbyte((struct membuff *)&gd->console_in);
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}
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static int console_record_tstc(void)
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{
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if (!(gd->flags & GD_FLG_RECORD))
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return 0;
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if (gd->console_in.start) {
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if (membuff_peekbyte((struct membuff *)&gd->console_in) != -1)
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return 1;
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}
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return 0;
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}
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#else
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static void console_record_putc(char c)
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{
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}
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static void console_record_puts(const char *s)
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{
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}
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static int console_record_getc(void)
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{
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return -1;
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}
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static int console_record_tstc(void)
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{
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return 0;
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}
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#endif
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#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
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/*
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* if overwrite_console returns 1, the stdin, stderr and stdout
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* are switched to the serial port, else the settings in the
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* environment are used
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*/
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#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
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extern int overwrite_console(void);
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#define OVERWRITE_CONSOLE overwrite_console()
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#else
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#define OVERWRITE_CONSOLE 0
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#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
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#endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
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static int console_setfile(int file, struct stdio_dev * dev)
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{
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int error = 0;
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if (dev == NULL)
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return -1;
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switch (file) {
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case stdin:
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case stdout:
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case stderr:
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error = console_start(file, dev);
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if (error)
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break;
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/* Assign the new device (leaving the existing one started) */
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stdio_devices[file] = dev;
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/*
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* Update monitor functions
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* (to use the console stuff by other applications)
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*/
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switch (file) {
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case stdin:
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gd->jt->getc = getchar;
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gd->jt->tstc = tstc;
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break;
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case stdout:
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gd->jt->putc = putc;
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gd->jt->puts = puts;
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gd->jt->printf = printf;
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break;
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}
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break;
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default: /* Invalid file ID */
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error = -1;
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}
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return error;
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}
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/**
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* console_dev_is_serial() - Check if a stdio device is a serial device
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*
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* @sdev: Device to check
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* Return: true if this device is in the serial uclass (or for pre-driver-model,
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* whether it is called "serial".
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*/
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static bool console_dev_is_serial(struct stdio_dev *sdev)
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{
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bool is_serial;
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if (IS_ENABLED(CONFIG_DM_SERIAL) && (sdev->flags & DEV_FLAGS_DM)) {
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struct udevice *dev = sdev->priv;
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is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL;
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} else {
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is_serial = !strcmp(sdev->name, "serial");
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}
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return is_serial;
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}
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#if CONFIG_IS_ENABLED(CONSOLE_MUX)
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/** Console I/O multiplexing *******************************************/
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/* tstcdev: save the last stdio device with pending characters, with tstc != 0 */
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static struct stdio_dev *tstcdev;
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struct stdio_dev **console_devices[MAX_FILES];
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int cd_count[MAX_FILES];
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static void console_devices_set(int file, struct stdio_dev *dev)
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{
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console_devices[file][0] = dev;
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cd_count[file] = 1;
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}
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/**
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* console_needs_start_stop() - check if we need to start or stop the STDIO device
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* @file: STDIO file
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* @sdev: STDIO device in question
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*
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* This function checks if we need to start or stop the stdio device used for
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* a console. For IOMUX case it simply enforces one time start and one time
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* stop of the device independently of how many STDIO files are using it. In
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* other words, we start console once before first STDIO device wants it and
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* stop after the last is gone.
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*/
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static bool console_needs_start_stop(int file, struct stdio_dev *sdev)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(cd_count); i++) {
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if (i == file)
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continue;
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if (iomux_match_device(console_devices[i], cd_count[i], sdev) >= 0)
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return false;
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}
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return true;
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}
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/*
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* This depends on tstc() always being called before getchar().
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* This is guaranteed to be true because this routine is called
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* only from fgetc() which assures it.
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* No attempt is made to demultiplex multiple input sources.
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*/
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static int console_getc(int file)
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{
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unsigned char ret;
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/* This is never called with testcdev == NULL */
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ret = tstcdev->getc(tstcdev);
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tstcdev = NULL;
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return ret;
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}
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/* Upper layer may have already called tstc(): check the saved result */
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static bool console_has_tstc(void)
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{
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return !!tstcdev;
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}
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static int console_tstc(int file)
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{
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int i, ret;
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struct stdio_dev *dev;
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int prev;
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prev = disable_ctrlc(1);
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for_each_console_dev(i, file, dev) {
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if (dev->tstc != NULL) {
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ret = dev->tstc(dev);
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if (ret > 0) {
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tstcdev = dev;
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disable_ctrlc(prev);
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return ret;
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}
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}
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}
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disable_ctrlc(prev);
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return 0;
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}
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static void console_putc(int file, const char c)
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{
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int i;
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struct stdio_dev *dev;
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for_each_console_dev(i, file, dev) {
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if (dev->putc != NULL)
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dev->putc(dev, c);
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}
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}
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/**
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* console_puts_select() - Output a string to all console devices
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*
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* @file: File number to output to (e,g, stdout, see stdio.h)
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* @serial_only: true to output only to serial, false to output to everything
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* else
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* @s: String to output
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*/
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static void console_puts_select(int file, bool serial_only, const char *s)
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{
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int i;
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struct stdio_dev *dev;
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for_each_console_dev(i, file, dev) {
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bool is_serial = console_dev_is_serial(dev);
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if (dev->puts && serial_only == is_serial)
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dev->puts(dev, s);
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}
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}
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void console_puts_select_stderr(bool serial_only, const char *s)
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{
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if (gd->flags & GD_FLG_DEVINIT)
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console_puts_select(stderr, serial_only, s);
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}
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static void console_puts(int file, const char *s)
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{
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int i;
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struct stdio_dev *dev;
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for_each_console_dev(i, file, dev) {
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if (dev->puts != NULL)
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dev->puts(dev, s);
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}
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}
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#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
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static inline void console_doenv(int file, struct stdio_dev *dev)
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{
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iomux_doenv(file, dev->name);
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}
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#endif
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#else
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static void console_devices_set(int file, struct stdio_dev *dev)
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{
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}
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static inline bool console_needs_start_stop(int file, struct stdio_dev *sdev)
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{
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return true;
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}
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static inline int console_getc(int file)
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{
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return stdio_devices[file]->getc(stdio_devices[file]);
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}
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static bool console_has_tstc(void)
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{
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return false;
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}
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static inline int console_tstc(int file)
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{
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return stdio_devices[file]->tstc(stdio_devices[file]);
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}
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static inline void console_putc(int file, const char c)
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{
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stdio_devices[file]->putc(stdio_devices[file], c);
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}
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void console_puts_select(int file, bool serial_only, const char *s)
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{
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if ((gd->flags & GD_FLG_DEVINIT) &&
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serial_only == console_dev_is_serial(stdio_devices[file]))
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stdio_devices[file]->puts(stdio_devices[file], s);
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}
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static inline void console_puts(int file, const char *s)
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{
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stdio_devices[file]->puts(stdio_devices[file], s);
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}
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#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
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static inline void console_doenv(int file, struct stdio_dev *dev)
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{
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console_setfile(file, dev);
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}
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#endif
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#endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */
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static void __maybe_unused console_setfile_and_devices(int file, struct stdio_dev *dev)
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{
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console_setfile(file, dev);
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console_devices_set(file, dev);
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}
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int console_start(int file, struct stdio_dev *sdev)
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{
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int error;
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if (!console_needs_start_stop(file, sdev))
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return 0;
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/* Start new device */
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if (sdev->start) {
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error = sdev->start(sdev);
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/* If it's not started don't use it */
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if (error < 0)
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return error;
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}
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return 0;
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}
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void console_stop(int file, struct stdio_dev *sdev)
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{
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if (!console_needs_start_stop(file, sdev))
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return;
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if (sdev->stop)
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sdev->stop(sdev);
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}
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/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
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int serial_printf(const char *fmt, ...)
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{
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va_list args;
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uint i;
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char printbuffer[CONFIG_SYS_PBSIZE];
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va_start(args, fmt);
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/* For this to work, printbuffer must be larger than
|
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* anything we ever want to print.
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*/
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i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
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va_end(args);
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serial_puts(printbuffer);
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return i;
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}
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int fgetc(int file)
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{
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if (file < MAX_FILES) {
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/*
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* Effectively poll for input wherever it may be available.
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*/
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for (;;) {
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WATCHDOG_RESET();
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if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
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/*
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* Upper layer may have already called tstc() so
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* check for that first.
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*/
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if (console_has_tstc())
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return console_getc(file);
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console_tstc(file);
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} else {
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if (console_tstc(file))
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return console_getc(file);
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}
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|
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/*
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* If the watchdog must be rate-limited then it should
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* already be handled in board-specific code.
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*/
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if (IS_ENABLED(CONFIG_WATCHDOG))
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udelay(1);
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}
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}
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return -1;
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}
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|
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int ftstc(int file)
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{
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if (file < MAX_FILES)
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return console_tstc(file);
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return -1;
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}
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void fputc(int file, const char c)
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{
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if (file < MAX_FILES)
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console_putc(file, c);
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}
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void fputs(int file, const char *s)
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{
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if (file < MAX_FILES)
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console_puts(file, s);
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}
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|
|
int fprintf(int file, const char *fmt, ...)
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{
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va_list args;
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uint i;
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char printbuffer[CONFIG_SYS_PBSIZE];
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va_start(args, fmt);
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|
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/* For this to work, printbuffer must be larger than
|
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* anything we ever want to print.
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*/
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i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
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va_end(args);
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/* Send to desired file */
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fputs(file, printbuffer);
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return i;
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}
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|
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/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
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|
|
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int getchar(void)
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|
{
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int ch;
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|
|
if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
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return 0;
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|
|
if (!gd->have_console)
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return 0;
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|
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ch = console_record_getc();
|
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if (ch != -1)
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return ch;
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|
|
|
if (gd->flags & GD_FLG_DEVINIT) {
|
|
/* Get from the standard input */
|
|
return fgetc(stdin);
|
|
}
|
|
|
|
/* Send directly to the handler */
|
|
return serial_getc();
|
|
}
|
|
|
|
int tstc(void)
|
|
{
|
|
if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
|
|
return 0;
|
|
|
|
if (!gd->have_console)
|
|
return 0;
|
|
|
|
if (console_record_tstc())
|
|
return 1;
|
|
|
|
if (gd->flags & GD_FLG_DEVINIT) {
|
|
/* Test the standard input */
|
|
return ftstc(stdin);
|
|
}
|
|
|
|
/* Send directly to the handler */
|
|
return serial_tstc();
|
|
}
|
|
|
|
#define PRE_CONSOLE_FLUSHPOINT1_SERIAL 0
|
|
#define PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL 1
|
|
|
|
#if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
|
|
#define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ)
|
|
|
|
static void pre_console_putc(const char c)
|
|
{
|
|
char *buffer;
|
|
|
|
buffer = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
|
|
|
|
buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
|
|
|
|
unmap_sysmem(buffer);
|
|
}
|
|
|
|
static void pre_console_puts(const char *s)
|
|
{
|
|
while (*s)
|
|
pre_console_putc(*s++);
|
|
}
|
|
|
|
static void print_pre_console_buffer(int flushpoint)
|
|
{
|
|
unsigned long in = 0, out = 0;
|
|
char buf_out[CONFIG_PRE_CON_BUF_SZ + 1];
|
|
char *buf_in;
|
|
|
|
if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT))
|
|
return;
|
|
|
|
buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
|
|
if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
|
|
in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;
|
|
|
|
while (in < gd->precon_buf_idx)
|
|
buf_out[out++] = buf_in[CIRC_BUF_IDX(in++)];
|
|
unmap_sysmem(buf_in);
|
|
|
|
buf_out[out] = 0;
|
|
|
|
switch (flushpoint) {
|
|
case PRE_CONSOLE_FLUSHPOINT1_SERIAL:
|
|
puts(buf_out);
|
|
break;
|
|
case PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL:
|
|
console_puts_select(stdout, false, buf_out);
|
|
break;
|
|
}
|
|
}
|
|
#else
|
|
static inline void pre_console_putc(const char c) {}
|
|
static inline void pre_console_puts(const char *s) {}
|
|
static inline void print_pre_console_buffer(int flushpoint) {}
|
|
#endif
|
|
|
|
void putc(const char c)
|
|
{
|
|
if (!gd)
|
|
return;
|
|
|
|
console_record_putc(c);
|
|
|
|
/* sandbox can send characters to stdout before it has a console */
|
|
if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
|
|
os_putc(c);
|
|
return;
|
|
}
|
|
|
|
/* if we don't have a console yet, use the debug UART */
|
|
if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY)) {
|
|
printch(c);
|
|
return;
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT)) {
|
|
if (!(gd->flags & GD_FLG_DEVINIT))
|
|
pre_console_putc(c);
|
|
return;
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
|
|
return;
|
|
|
|
if (!gd->have_console)
|
|
return pre_console_putc(c);
|
|
|
|
if (gd->flags & GD_FLG_DEVINIT) {
|
|
/* Send to the standard output */
|
|
fputc(stdout, c);
|
|
} else {
|
|
/* Send directly to the handler */
|
|
pre_console_putc(c);
|
|
serial_putc(c);
|
|
}
|
|
}
|
|
|
|
void puts(const char *s)
|
|
{
|
|
if (!gd)
|
|
return;
|
|
|
|
console_record_puts(s);
|
|
|
|
/* sandbox can send characters to stdout before it has a console */
|
|
if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
|
|
os_puts(s);
|
|
return;
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY)) {
|
|
while (*s) {
|
|
int ch = *s++;
|
|
|
|
printch(ch);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT)) {
|
|
if (!(gd->flags & GD_FLG_DEVINIT))
|
|
pre_console_puts(s);
|
|
return;
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
|
|
return;
|
|
|
|
if (!gd->have_console)
|
|
return pre_console_puts(s);
|
|
|
|
if (gd->flags & GD_FLG_DEVINIT) {
|
|
/* Send to the standard output */
|
|
fputs(stdout, s);
|
|
} else {
|
|
/* Send directly to the handler */
|
|
pre_console_puts(s);
|
|
serial_puts(s);
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_CONSOLE_RECORD
|
|
int console_record_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = membuff_new((struct membuff *)&gd->console_out,
|
|
gd->flags & GD_FLG_RELOC ?
|
|
CONFIG_CONSOLE_RECORD_OUT_SIZE :
|
|
CONFIG_CONSOLE_RECORD_OUT_SIZE_F);
|
|
if (ret)
|
|
return ret;
|
|
ret = membuff_new((struct membuff *)&gd->console_in,
|
|
CONFIG_CONSOLE_RECORD_IN_SIZE);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void console_record_reset(void)
|
|
{
|
|
membuff_purge((struct membuff *)&gd->console_out);
|
|
membuff_purge((struct membuff *)&gd->console_in);
|
|
gd->flags &= ~GD_FLG_RECORD_OVF;
|
|
}
|
|
|
|
int console_record_reset_enable(void)
|
|
{
|
|
console_record_reset();
|
|
gd->flags |= GD_FLG_RECORD;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int console_record_readline(char *str, int maxlen)
|
|
{
|
|
if (gd->flags & GD_FLG_RECORD_OVF)
|
|
return -ENOSPC;
|
|
|
|
return membuff_readline((struct membuff *)&gd->console_out, str,
|
|
maxlen, ' ');
|
|
}
|
|
|
|
int console_record_avail(void)
|
|
{
|
|
return membuff_avail((struct membuff *)&gd->console_out);
|
|
}
|
|
|
|
int console_in_puts(const char *str)
|
|
{
|
|
return membuff_put((struct membuff *)&gd->console_in, str, strlen(str));
|
|
}
|
|
|
|
#endif
|
|
|
|
/* test if ctrl-c was pressed */
|
|
static int ctrlc_disabled = 0; /* see disable_ctrl() */
|
|
static int ctrlc_was_pressed = 0;
|
|
int ctrlc(void)
|
|
{
|
|
if (!ctrlc_disabled && gd->have_console) {
|
|
if (tstc()) {
|
|
switch (getchar()) {
|
|
case 0x03: /* ^C - Control C */
|
|
ctrlc_was_pressed = 1;
|
|
return 1;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
/* Reads user's confirmation.
|
|
Returns 1 if user's input is "y", "Y", "yes" or "YES"
|
|
*/
|
|
int confirm_yesno(void)
|
|
{
|
|
int i;
|
|
char str_input[5];
|
|
|
|
/* Flush input */
|
|
while (tstc())
|
|
getchar();
|
|
i = 0;
|
|
while (i < sizeof(str_input)) {
|
|
str_input[i] = getchar();
|
|
putc(str_input[i]);
|
|
if (str_input[i] == '\r')
|
|
break;
|
|
i++;
|
|
}
|
|
putc('\n');
|
|
if (strncmp(str_input, "y\r", 2) == 0 ||
|
|
strncmp(str_input, "Y\r", 2) == 0 ||
|
|
strncmp(str_input, "yes\r", 4) == 0 ||
|
|
strncmp(str_input, "YES\r", 4) == 0)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
/* pass 1 to disable ctrlc() checking, 0 to enable.
|
|
* returns previous state
|
|
*/
|
|
int disable_ctrlc(int disable)
|
|
{
|
|
int prev = ctrlc_disabled; /* save previous state */
|
|
|
|
ctrlc_disabled = disable;
|
|
return prev;
|
|
}
|
|
|
|
int had_ctrlc (void)
|
|
{
|
|
return ctrlc_was_pressed;
|
|
}
|
|
|
|
void clear_ctrlc(void)
|
|
{
|
|
ctrlc_was_pressed = 0;
|
|
}
|
|
|
|
/** U-Boot INIT FUNCTIONS *************************************************/
|
|
|
|
struct stdio_dev *console_search_dev(int flags, const char *name)
|
|
{
|
|
struct stdio_dev *dev;
|
|
|
|
dev = stdio_get_by_name(name);
|
|
#ifdef CONFIG_VIDCONSOLE_AS_LCD
|
|
if (!dev && !strcmp(name, CONFIG_VIDCONSOLE_AS_NAME))
|
|
dev = stdio_get_by_name("vidconsole");
|
|
#endif
|
|
|
|
if (dev && (dev->flags & flags))
|
|
return dev;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int console_assign(int file, const char *devname)
|
|
{
|
|
int flag;
|
|
struct stdio_dev *dev;
|
|
|
|
/* Check for valid file */
|
|
flag = stdio_file_to_flags(file);
|
|
if (flag < 0)
|
|
return flag;
|
|
|
|
/* Check for valid device name */
|
|
|
|
dev = console_search_dev(flag, devname);
|
|
|
|
if (dev)
|
|
return console_setfile(file, dev);
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* return true if the 'silent' flag is removed */
|
|
static bool console_update_silent(void)
|
|
{
|
|
unsigned long flags = gd->flags;
|
|
|
|
if (!IS_ENABLED(CONFIG_SILENT_CONSOLE))
|
|
return false;
|
|
|
|
if (env_get("silent")) {
|
|
gd->flags |= GD_FLG_SILENT;
|
|
return false;
|
|
}
|
|
|
|
gd->flags &= ~GD_FLG_SILENT;
|
|
|
|
return !!(flags & GD_FLG_SILENT);
|
|
}
|
|
|
|
int console_announce_r(void)
|
|
{
|
|
#if !CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER)
|
|
char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
|
|
|
|
display_options_get_banner(false, buf, sizeof(buf));
|
|
|
|
console_puts_select(stdout, false, buf);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Called before relocation - use serial functions */
|
|
int console_init_f(void)
|
|
{
|
|
gd->have_console = 1;
|
|
|
|
console_update_silent();
|
|
|
|
print_pre_console_buffer(PRE_CONSOLE_FLUSHPOINT1_SERIAL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void stdio_print_current_devices(void)
|
|
{
|
|
/* Print information */
|
|
puts("In: ");
|
|
if (stdio_devices[stdin] == NULL) {
|
|
puts("No input devices available!\n");
|
|
} else {
|
|
printf ("%s\n", stdio_devices[stdin]->name);
|
|
}
|
|
|
|
puts("Out: ");
|
|
if (stdio_devices[stdout] == NULL) {
|
|
puts("No output devices available!\n");
|
|
} else {
|
|
printf ("%s\n", stdio_devices[stdout]->name);
|
|
}
|
|
|
|
puts("Err: ");
|
|
if (stdio_devices[stderr] == NULL) {
|
|
puts("No error devices available!\n");
|
|
} else {
|
|
printf ("%s\n", stdio_devices[stderr]->name);
|
|
}
|
|
}
|
|
|
|
#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
|
|
/* Called after the relocation - use desired console functions */
|
|
int console_init_r(void)
|
|
{
|
|
char *stdinname, *stdoutname, *stderrname;
|
|
struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
|
|
int i;
|
|
int iomux_err = 0;
|
|
int flushpoint;
|
|
|
|
/* update silent for env loaded from flash (initr_env) */
|
|
if (console_update_silent())
|
|
flushpoint = PRE_CONSOLE_FLUSHPOINT1_SERIAL;
|
|
else
|
|
flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
|
|
|
|
/* set default handlers at first */
|
|
gd->jt->getc = serial_getc;
|
|
gd->jt->tstc = serial_tstc;
|
|
gd->jt->putc = serial_putc;
|
|
gd->jt->puts = serial_puts;
|
|
gd->jt->printf = serial_printf;
|
|
|
|
/* stdin stdout and stderr are in environment */
|
|
/* scan for it */
|
|
stdinname = env_get("stdin");
|
|
stdoutname = env_get("stdout");
|
|
stderrname = env_get("stderr");
|
|
|
|
if (OVERWRITE_CONSOLE == 0) { /* if not overwritten by config switch */
|
|
inputdev = console_search_dev(DEV_FLAGS_INPUT, stdinname);
|
|
outputdev = console_search_dev(DEV_FLAGS_OUTPUT, stdoutname);
|
|
errdev = console_search_dev(DEV_FLAGS_OUTPUT, stderrname);
|
|
if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
|
|
iomux_err = iomux_doenv(stdin, stdinname);
|
|
iomux_err += iomux_doenv(stdout, stdoutname);
|
|
iomux_err += iomux_doenv(stderr, stderrname);
|
|
if (!iomux_err)
|
|
/* Successful, so skip all the code below. */
|
|
goto done;
|
|
}
|
|
}
|
|
/* if the devices are overwritten or not found, use default device */
|
|
if (inputdev == NULL) {
|
|
inputdev = console_search_dev(DEV_FLAGS_INPUT, "serial");
|
|
}
|
|
if (outputdev == NULL) {
|
|
outputdev = console_search_dev(DEV_FLAGS_OUTPUT, "serial");
|
|
}
|
|
if (errdev == NULL) {
|
|
errdev = console_search_dev(DEV_FLAGS_OUTPUT, "serial");
|
|
}
|
|
/* Initializes output console first */
|
|
if (outputdev != NULL) {
|
|
/* need to set a console if not done above. */
|
|
console_doenv(stdout, outputdev);
|
|
}
|
|
if (errdev != NULL) {
|
|
/* need to set a console if not done above. */
|
|
console_doenv(stderr, errdev);
|
|
}
|
|
if (inputdev != NULL) {
|
|
/* need to set a console if not done above. */
|
|
console_doenv(stdin, inputdev);
|
|
}
|
|
|
|
done:
|
|
|
|
if (!IS_ENABLED(CONFIG_SYS_CONSOLE_INFO_QUIET))
|
|
stdio_print_current_devices();
|
|
|
|
#ifdef CONFIG_VIDCONSOLE_AS_LCD
|
|
if (strstr(stdoutname, CONFIG_VIDCONSOLE_AS_NAME))
|
|
printf("Warning: Please change '%s' to 'vidconsole' in stdout/stderr environment vars\n",
|
|
CONFIG_VIDCONSOLE_AS_NAME);
|
|
#endif
|
|
|
|
if (IS_ENABLED(CONFIG_SYS_CONSOLE_ENV_OVERWRITE)) {
|
|
/* set the environment variables (will overwrite previous env settings) */
|
|
for (i = 0; i < MAX_FILES; i++)
|
|
env_set(stdio_names[i], stdio_devices[i]->name);
|
|
}
|
|
|
|
gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
|
|
|
|
print_pre_console_buffer(flushpoint);
|
|
return 0;
|
|
}
|
|
|
|
#else /* !CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
|
|
|
|
/* Called after the relocation - use desired console functions */
|
|
int console_init_r(void)
|
|
{
|
|
struct stdio_dev *inputdev = NULL, *outputdev = NULL;
|
|
int i;
|
|
struct list_head *list = stdio_get_list();
|
|
struct list_head *pos;
|
|
struct stdio_dev *dev;
|
|
int flushpoint;
|
|
|
|
/* update silent for env loaded from flash (initr_env) */
|
|
if (console_update_silent())
|
|
flushpoint = PRE_CONSOLE_FLUSHPOINT1_SERIAL;
|
|
else
|
|
flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
|
|
|
|
/*
|
|
* suppress all output if splash screen is enabled and we have
|
|
* a bmp to display. We redirect the output from frame buffer
|
|
* console to serial console in this case or suppress it if
|
|
* "silent" mode was requested.
|
|
*/
|
|
if (IS_ENABLED(CONFIG_SPLASH_SCREEN) && env_get("splashimage")) {
|
|
if (!(gd->flags & GD_FLG_SILENT))
|
|
outputdev = console_search_dev (DEV_FLAGS_OUTPUT, "serial");
|
|
}
|
|
|
|
/* Scan devices looking for input and output devices */
|
|
list_for_each(pos, list) {
|
|
dev = list_entry(pos, struct stdio_dev, list);
|
|
|
|
if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
|
|
inputdev = dev;
|
|
}
|
|
if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
|
|
outputdev = dev;
|
|
}
|
|
if(inputdev && outputdev)
|
|
break;
|
|
}
|
|
|
|
/* Initializes output console first */
|
|
if (outputdev != NULL) {
|
|
console_setfile_and_devices(stdout, outputdev);
|
|
console_setfile_and_devices(stderr, outputdev);
|
|
}
|
|
|
|
/* Initializes input console */
|
|
if (inputdev != NULL)
|
|
console_setfile_and_devices(stdin, inputdev);
|
|
|
|
if (!IS_ENABLED(CONFIG_SYS_CONSOLE_INFO_QUIET))
|
|
stdio_print_current_devices();
|
|
|
|
/* Setting environment variables */
|
|
for (i = 0; i < MAX_FILES; i++) {
|
|
env_set(stdio_names[i], stdio_devices[i]->name);
|
|
}
|
|
|
|
gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
|
|
|
|
print_pre_console_buffer(flushpoint);
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
|