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-rw-r--r--common/Kconfig6
-rw-r--r--common/console.c64
-rw-r--r--common/stdio.c8
3 files changed, 78 insertions, 0 deletions
diff --git a/common/Kconfig b/common/Kconfig
index b776c5ca1ec..6591acd2fd0 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -186,6 +186,12 @@ config PRE_CON_BUF_ADDR
We should consider removing this option and allocating the memory
in board_init_f_init_reserve() instead.
+config CONSOLE_FLUSH_SUPPORT
+ bool "Enable console flush support"
+ default y
+ help
+ This enables compilation of flush() function for console flush support.
+
config CONSOLE_MUX
bool "Enable console multiplexing"
default y if DM_VIDEO || VIDEO || LCD
diff --git a/common/console.c b/common/console.c
index e5be6ff44b0..0c9bf66c3f6 100644
--- a/common/console.c
+++ b/common/console.c
@@ -199,6 +199,7 @@ static int console_setfile(int file, struct stdio_dev * dev)
case stdout:
gd->jt->putc = putc;
gd->jt->puts = puts;
+ STDIO_DEV_ASSIGN_FLUSH(gd->jt, flush);
gd->jt->printf = printf;
break;
}
@@ -364,6 +365,19 @@ static void console_puts(int file, const char *s)
}
}
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+static void console_flush(int file)
+{
+ int i;
+ struct stdio_dev *dev;
+
+ for_each_console_dev(i, file, dev) {
+ if (dev->flush != NULL)
+ dev->flush(dev);
+ }
+}
+#endif
+
#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
static inline void console_doenv(int file, struct stdio_dev *dev)
{
@@ -413,6 +427,14 @@ static inline void console_puts(int file, const char *s)
stdio_devices[file]->puts(stdio_devices[file], s);
}
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+static inline void console_flush(int file)
+{
+ if (stdio_devices[file]->flush)
+ stdio_devices[file]->flush(stdio_devices[file]);
+}
+#endif
+
#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
static inline void console_doenv(int file, struct stdio_dev *dev)
{
@@ -526,6 +548,14 @@ void fputs(int file, const char *s)
console_puts(file, s);
}
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+void fflush(int file)
+{
+ if (file < MAX_FILES)
+ console_flush(file);
+}
+#endif
+
int fprintf(int file, const char *fmt, ...)
{
va_list args;
@@ -740,6 +770,40 @@ void puts(const char *s)
}
}
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+void flush(void)
+{
+ if (!gd)
+ return;
+
+ /* sandbox can send characters to stdout before it has a console */
+ if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
+ os_flush();
+ return;
+ }
+
+ if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY))
+ return;
+
+ if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT))
+ return;
+
+ if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
+ return;
+
+ if (!gd->have_console)
+ return;
+
+ if (gd->flags & GD_FLG_DEVINIT) {
+ /* Send to the standard output */
+ fflush(stdout);
+ } else {
+ /* Send directly to the handler */
+ serial_flush();
+ }
+}
+#endif
+
#ifdef CONFIG_CONSOLE_RECORD
int console_record_init(void)
{
diff --git a/common/stdio.c b/common/stdio.c
index 92161a0df87..13083842cbd 100644
--- a/common/stdio.c
+++ b/common/stdio.c
@@ -87,6 +87,13 @@ static void stdio_serial_puts(struct stdio_dev *dev, const char *s)
serial_puts(s);
}
+#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
+static void stdio_serial_flush(struct stdio_dev *dev)
+{
+ serial_flush();
+}
+#endif
+
static int stdio_serial_getc(struct stdio_dev *dev)
{
return serial_getc();
@@ -112,6 +119,7 @@ static void drv_system_init (void)
dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
dev.putc = stdio_serial_putc;
dev.puts = stdio_serial_puts;
+ STDIO_DEV_ASSIGN_FLUSH(&dev, stdio_serial_flush);
dev.getc = stdio_serial_getc;
dev.tstc = stdio_serial_tstc;
stdio_register (&dev);