[U-Boot] [PATCH v4 2/8] main: Use autoconf for boot retry feature

[Simon Glass]

Change this feature to use autoconf instead of #ifdef.

Signed-off-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger at ni.com>
---
Changes in v4:
- Rebase on current master
- Tidy up code style nits with new checkpatch

Changes in v3:
- Fix missing && in if() statement
- Remove unneeded retry_min variable

Changes in v2: None

 common/main.c | 73 ++++++++++++++++++++++++++---------------------------------
 1 file changed, 32 insertions(+), 41 deletions(-)

diff --git a/common/main.c b/common/main.c
index 56da214..3a143ae 100644
--- a/common/main.c
+++ b/common/main.c
@@ -65,17 +65,11 @@ static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen);
 static const char erase_seq[] = "\b \b";		/* erase sequence	*/
 static const char   tab_seq[] = "        ";		/* used to expand TABs	*/
 
-#ifdef CONFIG_BOOT_RETRY_TIME
 static uint64_t endtime = 0;  /* must be set, default is instant timeout */
 static int      retry_time = -1; /* -1 so can call readline before main_loop */
-#endif
 
 #define	endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk())
 
-#ifndef CONFIG_BOOT_RETRY_MIN
-#define CONFIG_BOOT_RETRY_MIN CONFIG_BOOT_RETRY_TIME
-#endif
-
 #ifdef CONFIG_MODEM_SUPPORT
 int do_mdm_init = 0;
 extern void mdm_init(void); /* defined in board.c */
@@ -174,11 +168,10 @@ static int abortboot_keyed(int bootdelay)
 					       delaykey[i].retry ? "delay" :
 					       "stop");
 
-#  ifdef CONFIG_BOOT_RETRY_TIME
-				/* don't retry auto boot */
-				if (! delaykey[i].retry)
+				/* don't retry auto boot? */
+				if (autoconf_boot_retry_time() &&
+				    !delaykey[i].retry)
 					retry_time = -1;
-#  endif
 				abort = 1;
 			}
 		}
@@ -368,9 +361,8 @@ static void process_boot_delay(void)
 #if defined(CONFIG_MENU_SHOW)
 	bootdelay = menu_show(bootdelay);
 #endif
-# ifdef CONFIG_BOOT_RETRY_TIME
-	init_cmd_timeout ();
-# endif	/* CONFIG_BOOT_RETRY_TIME */
+	if (autoconf_boot_retry_time())
+		init_cmd_timeout();
 
 #ifdef CONFIG_POST
 	if (gd->flags & GD_FLG_POSTFAIL) {
@@ -499,14 +491,12 @@ void main_loop(void)
 	for (;;);
 #else
 	for (;;) {
-#ifdef CONFIG_BOOT_RETRY_TIME
-		if (rc >= 0) {
+		if (autoconf_boot_retry_time() && rc >= 0) {
 			/* Saw enough of a valid command to
 			 * restart the timeout.
 			 */
 			reset_cmd_timeout();
 		}
-#endif
 		len = readline (CONFIG_SYS_PROMPT);
 
 		flag = 0;	/* assume no special flags for now */
@@ -514,19 +504,16 @@ void main_loop(void)
 			strcpy (lastcommand, console_buffer);
 		else if (len == 0)
 			flag |= CMD_FLAG_REPEAT;
-#ifdef CONFIG_BOOT_RETRY_TIME
-		else if (len == -2) {
+		else if (autoconf_boot_retry_time() && len == -2) {
 			/* -2 means timed out, retry autoboot
 			 */
-			puts ("\nTimed out waiting for command\n");
-# ifdef CONFIG_RESET_TO_RETRY
+			puts("\nTimed out waiting for command\n");
 			/* Reinit board to run initialization code again */
-			do_reset (NULL, 0, 0, NULL);
-# else
-			return;		/* retry autoboot */
-# endif
+			if (autoconf_reset_to_retry())
+				do_reset(NULL, 0, 0, NULL);
+			else
+				return;		/* retry autoboot */
 		}
-#endif
 
 		if (len == -1)
 			puts ("<INTERRUPT>\n");
@@ -541,6 +528,10 @@ void main_loop(void)
 #endif /*CONFIG_SYS_HUSH_PARSER*/
 }
 
+/*
+ * Use ifdef here for the benefit of those archs not using
+ * -ffunction-sections, since these functions are exported.
+ */
 #ifdef CONFIG_BOOT_RETRY_TIME
 /***************************************************************************
  * initialize command line timeout
@@ -552,10 +543,10 @@ void init_cmd_timeout(void)
 	if (s != NULL)
 		retry_time = (int)simple_strtol(s, NULL, 10);
 	else
-		retry_time =  CONFIG_BOOT_RETRY_TIME;
+		retry_time = autoconf_boot_retry_time();
 
-	if (retry_time >= 0 && retry_time < CONFIG_BOOT_RETRY_MIN)
-		retry_time = CONFIG_BOOT_RETRY_MIN;
+	if (retry_time >= 0 && retry_time < autoconf_boot_retry_min())
+		retry_time = autoconf_boot_retry_min();
 }
 
 /***************************************************************************
@@ -777,13 +768,13 @@ static int cread_line(const char *const prompt, char *buf, unsigned int *len,
 		cread_add_str(buf, init_len, 1, &num, &eol_num, buf, *len);
 
 	while (1) {
-#ifdef CONFIG_BOOT_RETRY_TIME
-		while (!tstc()) {	/* while no incoming data */
-			if (retry_time >= 0 && get_ticks() > endtime)
-				return (-2);	/* timed out */
-			WATCHDOG_RESET();
+		if (autoconf_boot_retry_time()) {
+			while (!tstc()) {	/* while no incoming data */
+				if (retry_time >= 0 && get_ticks() > endtime)
+					return -2;	/* timed out */
+				WATCHDOG_RESET();
+			}
 		}
-#endif
 		if (first && timeout) {
 			uint64_t etime = endtick(timeout);
 
@@ -1055,14 +1046,14 @@ int readline_into_buffer(const char *const prompt, char *buffer, int timeout)
 	col = plen;
 
 	for (;;) {
-#ifdef CONFIG_BOOT_RETRY_TIME
-		while (!tstc()) {	/* while no incoming data */
-			if (retry_time >= 0 && get_ticks() > endtime)
-				return (-2);	/* timed out */
-			WATCHDOG_RESET();
+		if (autoconf_boot_retry_time()) {
+			while (!tstc()) {	/* while no incoming data */
+				if (retry_time >= 0 && get_ticks() > endtime)
+					return -2;	/* timed out */
+				WATCHDOG_RESET();
+			}
 		}
-#endif
-		WATCHDOG_RESET();		/* Trigger watchdog, if needed */
+		WATCHDOG_RESET();	/* Trigger watchdog, if needed */
 
 #ifdef CONFIG_SHOW_ACTIVITY
 		while (!tstc()) {
-- 
1.8.3