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u-boot-brain/common/console.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2000
* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
*/
#include <common.h>
#include <console.h>
#include <debug_uart.h>
#include <dm.h>
#include <env.h>
#include <stdarg.h>
#include <iomux.h>
#include <malloc.h>
#include <mapmem.h>
#include <os.h>
#include <serial.h>
#include <stdio_dev.h>
#include <exports.h>
#include <env_internal.h>
#include <watchdog.h>
#include <asm/global_data.h>
#include <linux/delay.h>
DECLARE_GLOBAL_DATA_PTR;
static int on_console(const char *name, const char *value, enum env_op op,
int flags)
{
int console = -1;
/* Check for console redirection */
if (strcmp(name, "stdin") == 0)
console = stdin;
else if (strcmp(name, "stdout") == 0)
console = stdout;
else if (strcmp(name, "stderr") == 0)
console = stderr;
/* if not actually setting a console variable, we don't care */
if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
return 0;
switch (op) {
case env_op_create:
case env_op_overwrite:
if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
if (iomux_doenv(console, value))
return 1;
} else {
/* Try assigning specified device */
if (console_assign(console, value) < 0)
return 1;
}
return 0;
case env_op_delete:
if ((flags & H_FORCE) == 0)
printf("Can't delete \"%s\"\n", name);
return 1;
default:
return 0;
}
}
U_BOOT_ENV_CALLBACK(console, on_console);
#ifdef CONFIG_SILENT_CONSOLE
static int on_silent(const char *name, const char *value, enum env_op op,
int flags)
{
if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET))
if (flags & H_INTERACTIVE)
return 0;
if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC))
if ((flags & H_INTERACTIVE) == 0)
return 0;
if (value != NULL)
gd->flags |= GD_FLG_SILENT;
else
gd->flags &= ~GD_FLG_SILENT;
return 0;
}
U_BOOT_ENV_CALLBACK(silent, on_silent);
#endif
#ifdef CONFIG_CONSOLE_RECORD
/* helper function: access to gd->console_out and gd->console_in */
static void console_record_putc(const char c)
{
if (!(gd->flags & GD_FLG_RECORD))
return;
if (gd->console_out.start)
membuff_putbyte((struct membuff *)&gd->console_out, c);
}
static void console_record_puts(const char *s)
{
if (!(gd->flags & GD_FLG_RECORD))
return;
if (gd->console_out.start)
membuff_put((struct membuff *)&gd->console_out, s, strlen(s));
}
static int console_record_getc(void)
{
if (!(gd->flags & GD_FLG_RECORD))
return -1;
if (!gd->console_in.start)
return -1;
return membuff_getbyte((struct membuff *)&gd->console_in);
}
static int console_record_tstc(void)
{
if (!(gd->flags & GD_FLG_RECORD))
return 0;
if (gd->console_in.start) {
if (membuff_peekbyte((struct membuff *)&gd->console_in) != -1)
return 1;
}
return 0;
}
#else
static void console_record_putc(char c)
{
}
static void console_record_puts(const char *s)
{
}
static int console_record_getc(void)
{
return -1;
}
static int console_record_tstc(void)
{
return 0;
}
#endif
#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
/*
* if overwrite_console returns 1, the stdin, stderr and stdout
* are switched to the serial port, else the settings in the
* environment are used
*/
#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
extern int overwrite_console(void);
#define OVERWRITE_CONSOLE overwrite_console()
#else
#define OVERWRITE_CONSOLE 0
#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
#endif /* CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV) */
static int console_setfile(int file, struct stdio_dev * dev)
{
int error = 0;
if (dev == NULL)
return -1;
switch (file) {
case stdin:
case stdout:
case stderr:
error = console_start(file, dev);
if (error)
break;
/* Assign the new device (leaving the existing one started) */
stdio_devices[file] = dev;
/*
* Update monitor functions
* (to use the console stuff by other applications)
*/
switch (file) {
case stdin:
gd->jt->getc = getchar;
gd->jt->tstc = tstc;
break;
case stdout:
gd->jt->putc = putc;
gd->jt->puts = puts;
gd->jt->printf = printf;
break;
}
break;
default: /* Invalid file ID */
error = -1;
}
return error;
}
/**
* console_dev_is_serial() - Check if a stdio device is a serial device
*
* @sdev: Device to check
* @return true if this device is in the serial uclass (or for pre-driver-model,
* whether it is called "serial".
*/
static bool console_dev_is_serial(struct stdio_dev *sdev)
{
bool is_serial;
if (IS_ENABLED(CONFIG_DM_SERIAL) && (sdev->flags & DEV_FLAGS_DM)) {
struct udevice *dev = sdev->priv;
is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL;
} else {
is_serial = !strcmp(sdev->name, "serial");
}
return is_serial;
}
#if CONFIG_IS_ENABLED(CONSOLE_MUX)
/** Console I/O multiplexing *******************************************/
/* tstcdev: save the last stdio device with pending characters, with tstc != 0 */
static struct stdio_dev *tstcdev;
struct stdio_dev **console_devices[MAX_FILES];
int cd_count[MAX_FILES];
static void console_devices_set(int file, struct stdio_dev *dev)
{
console_devices[file][0] = dev;
cd_count[file] = 1;
}
/**
* console_needs_start_stop() - check if we need to start or stop the STDIO device
* @file: STDIO file
* @sdev: STDIO device in question
*
* This function checks if we need to start or stop the stdio device used for
* a console. For IOMUX case it simply enforces one time start and one time
* stop of the device independently of how many STDIO files are using it. In
* other words, we start console once before first STDIO device wants it and
* stop after the last is gone.
*/
static bool console_needs_start_stop(int file, struct stdio_dev *sdev)
{
int i;
for (i = 0; i < ARRAY_SIZE(cd_count); i++) {
if (i == file)
continue;
if (iomux_match_device(console_devices[i], cd_count[i], sdev) >= 0)
return false;
}
return true;
}
/*
* This depends on tstc() always being called before getchar().
* This is guaranteed to be true because this routine is called
* only from fgetc() which assures it.
* No attempt is made to demultiplex multiple input sources.
*/
static int console_getc(int file)
{
unsigned char ret;
/* This is never called with testcdev == NULL */
ret = tstcdev->getc(tstcdev);
tstcdev = NULL;
return ret;
}
/* Upper layer may have already called tstc(): check the saved result */
static bool console_has_tstc(void)
{
return !!tstcdev;
}
static int console_tstc(int file)
{
int i, ret;
struct stdio_dev *dev;
int prev;
prev = disable_ctrlc(1);
for_each_console_dev(i, file, dev) {
if (dev->tstc != NULL) {
ret = dev->tstc(dev);
if (ret > 0) {
tstcdev = dev;
disable_ctrlc(prev);
return ret;
}
}
}
disable_ctrlc(prev);
return 0;
}
static void console_putc(int file, const char c)
{
int i;
struct stdio_dev *dev;
for_each_console_dev(i, file, dev) {
if (dev->putc != NULL)
dev->putc(dev, c);
}
}
/**
* console_puts_select() - Output a string to all console devices
*
* @file: File number to output to (e,g, stdout, see stdio.h)
* @serial_only: true to output only to serial, false to output to everything
* else
* @s: String to output
*/
static void console_puts_select(int file, bool serial_only, const char *s)
{
int i;
struct stdio_dev *dev;
for_each_console_dev(i, file, dev) {
bool is_serial = console_dev_is_serial(dev);
if (dev->puts && serial_only == is_serial)
dev->puts(dev, s);
}
}
void console_puts_select_stderr(bool serial_only, const char *s)
{
console_puts_select(stderr, serial_only, s);
}
static void console_puts(int file, const char *s)
{
int i;
struct stdio_dev *dev;
for_each_console_dev(i, file, dev) {
if (dev->puts != NULL)
dev->puts(dev, s);
}
}
#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
static inline void console_doenv(int file, struct stdio_dev *dev)
{
iomux_doenv(file, dev->name);
}
#endif
#else
static void console_devices_set(int file, struct stdio_dev *dev)
{
}
static inline bool console_needs_start_stop(int file, struct stdio_dev *sdev)
{
return true;
}
static inline int console_getc(int file)
{
return stdio_devices[file]->getc(stdio_devices[file]);
}
static bool console_has_tstc(void)
{
return false;
}
static inline int console_tstc(int file)
{
return stdio_devices[file]->tstc(stdio_devices[file]);
}
static inline void console_putc(int file, const char c)
{
stdio_devices[file]->putc(stdio_devices[file], c);
}
void console_puts_select(int file, bool serial_only, const char *s)
{
if (serial_only == console_dev_is_serial(stdio_devices[file]))
stdio_devices[file]->puts(stdio_devices[file], s);
}
static inline void console_puts(int file, const char *s)
{
stdio_devices[file]->puts(stdio_devices[file], s);
}
#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
static inline void console_doenv(int file, struct stdio_dev *dev)
{
console_setfile(file, dev);
}
#endif
#endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */
static void __maybe_unused console_setfile_and_devices(int file, struct stdio_dev *dev)
{
console_setfile(file, dev);
console_devices_set(file, dev);
}
int console_start(int file, struct stdio_dev *sdev)
{
int error;
if (!console_needs_start_stop(file, sdev))
return 0;
/* Start new device */
if (sdev->start) {
error = sdev->start(sdev);
/* If it's not started don't use it */
if (error < 0)
return error;
}
return 0;
}
void console_stop(int file, struct stdio_dev *sdev)
{
if (!console_needs_start_stop(file, sdev))
return;
if (sdev->stop)
sdev->stop(sdev);
}
/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
int serial_printf(const char *fmt, ...)
{
va_list args;
uint i;
char printbuffer[CONFIG_SYS_PBSIZE];
va_start(args, fmt);
/* For this to work, printbuffer must be larger than
* anything we ever want to print.
*/
i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
va_end(args);
serial_puts(printbuffer);
return i;
}
int fgetc(int file)
{
if (file < MAX_FILES) {
/*
* Effectively poll for input wherever it may be available.
*/
for (;;) {
WATCHDOG_RESET();
if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
/*
* Upper layer may have already called tstc() so
* check for that first.
*/
if (console_has_tstc())
return console_getc(file);
console_tstc(file);
} else {
if (console_tstc(file))
return console_getc(file);
}
/*
* If the watchdog must be rate-limited then it should
* already be handled in board-specific code.
*/
if (IS_ENABLED(CONFIG_WATCHDOG))
udelay(1);
}
}
return -1;
}
int ftstc(int file)
{
if (file < MAX_FILES)
return console_tstc(file);
return -1;
}
void fputc(int file, const char c)
{
if (file < MAX_FILES)
console_putc(file, c);
}
void fputs(int file, const char *s)
{
if (file < MAX_FILES)
console_puts(file, s);
}
int fprintf(int file, const char *fmt, ...)
{
va_list args;
uint i;
char printbuffer[CONFIG_SYS_PBSIZE];
va_start(args, fmt);
/* For this to work, printbuffer must be larger than
* anything we ever want to print.
*/
i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
va_end(args);
/* Send to desired file */
fputs(file, printbuffer);
return i;
}
/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
int getchar(void)
{
int ch;
if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
return 0;
if (!gd->have_console)
return 0;
ch = console_record_getc();
if (ch != -1)
return ch;
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,
CONFIG_CONSOLE_RECORD_OUT_SIZE);
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);
}
int console_record_reset_enable(void)
{
console_record_reset();
gd->flags |= GD_FLG_RECORD;
return 0;
}
int console_record_readline(char *str, int maxlen)
{
return membuff_readline((struct membuff *)&gd->console_out, str,
maxlen, ' ');
}
int console_record_avail(void)
{
return membuff_avail((struct membuff *)&gd->console_out);
}
#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) */
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