From: Patrick Delaunay patrick.delaunay@st.com
Add the helper function console_has_tstc() and replace the test #if CONFIG_IS_ENABLED(CONSOLE_MUX) to a simple 'if' test to respect the U-Boot coding rule.
No functional change.
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com Signed-off-by: Patrick Delaunay patrick.delaunay@foss.st.com ---
Changes in v3: - update commit message with new function name console_has_tstc
Changes in v2: - add comment for tstcdev variable - rename console_tstc_check to console_has_tstc
common/console.c | 37 +++++++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 12 deletions(-)
diff --git a/common/console.c b/common/console.c index 295c10f242..e82b5d2075 100644 --- a/common/console.c +++ b/common/console.c @@ -231,6 +231,7 @@ static bool console_dev_is_serial(struct stdio_dev *sdev) #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]; @@ -256,6 +257,12 @@ static int console_getc(int file) 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; @@ -348,6 +355,11 @@ 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]); @@ -405,18 +417,19 @@ int fgetc(int file) */ for (;;) { WATCHDOG_RESET(); -#if CONFIG_IS_ENABLED(CONSOLE_MUX) - /* - * Upper layer may have already called tstc() so - * check for that first. - */ - if (tstcdev != NULL) - return console_getc(file); - console_tstc(file); -#else - if (console_tstc(file)) - return console_getc(file); -#endif + 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.