[PATCH 5/8] console: console_get_by_name pass flags

[Jean-Christophe PLAGNIOL-VILLARD]

this will allow to get console by name and specific feature
we use CONSOLE_STDIN to check input support and CONSOLE_STDOUT for output
support at driver level

this will also allow to use non active console for loadxy as example

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
---
 commands/loadxy.c       |  4 ++--
 common/console_common.c | 10 ++++++----
 include/console.h       |  2 +-
 3 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/commands/loadxy.c b/commands/loadxy.c
index 7cefba4..41181f2 100644
--- a/commands/loadxy.c
+++ b/commands/loadxy.c
@@ -90,7 +90,7 @@ static int do_loady(int argc, char *argv[])
 	}
 
 	if (cname)
-		cdev = console_get_by_name(cname);
+		cdev = console_get_by_name(cname, CONSOLE_STDIN & CONSOLE_STDOUT);
 	else
 		cdev = console_get_first_active();
 	if (!cdev) {
@@ -167,7 +167,7 @@ static int do_loadx(int argc, char *argv[])
 	}
 
 	if (cname)
-		cdev = console_get_by_name(cname);
+		cdev = console_get_by_name(cname, CONSOLE_STDIN & CONSOLE_STDOUT);
 	else
 		cdev = console_get_first_active();
 	if (!cdev) {
diff --git a/common/console_common.c b/common/console_common.c
index 05603c4..6e5fb68 100644
--- a/common/console_common.c
+++ b/common/console_common.c
@@ -203,7 +203,7 @@ struct console_device *console_get_first_active(void)
 }
 EXPORT_SYMBOL(console_get_first_active);
 
-struct console_device *console_get_by_name(const char *cname)
+struct console_device *console_get_by_name(const char *cname, int flags)
 {
 	struct console_device *cdev;
 	const char *target;
@@ -212,9 +212,11 @@ struct console_device *console_get_by_name(const char *cname)
 		target = dev_id(&cdev->class_dev);
 		if (strcmp(cname, target))
 			continue;
-		if ((cdev->f_active & (CONSOLE_STDIN | CONSOLE_STDOUT))
-			return cdev;
-		return NULL;
+		if ((flags & CONSOLE_STDIN) && !(cdev->tstc && cdev->getc))
+			return NULL;
+		if ((flags & CONSOLE_STDOUT) && !cdev->putc)
+			return NULL;
+		return cdev;
 	}
 	return NULL;
 }
diff --git a/include/console.h b/include/console.h
index 8f0aac0..f1bc049 100644
--- a/include/console.h
+++ b/include/console.h
@@ -68,7 +68,7 @@ void console_allow_input(bool val);
 
 extern int barebox_loglevel;
 struct console_device *console_get_first_active(void);
-struct console_device *console_get_by_name(const char *cname);
+struct console_device *console_get_by_name(const char *cname, int flags);
 int console_open(struct console_device *cdev);
 void console_close(struct console_device *cdev);
 
-- 
1.8.4.rc3