[U-Boot] [PATCH 2/6] stdio: dm: Add accessors to stdio_devices[]

[Marek Vasut]

Implement stdio_get_fd() and stdio_set_fd() calls to access
currently assigned STDIO devices. This will in turn allow to
make the stdio_devices[] local to stdio.c

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Wolfgang Denk <wd at denx.de>
---
 common/stdio.c      |   26 ++++++++++++++++++++++++++
 include/stdio_dev.h |    2 ++
 2 files changed, 28 insertions(+)

diff --git a/common/stdio.c b/common/stdio.c
index 1bf9ba0..6c8ac73 100644
--- a/common/stdio.c
+++ b/common/stdio.c
@@ -33,6 +33,7 @@
 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
 #include <i2c.h>
 #endif
+#include <errno.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -122,6 +123,31 @@ struct stdio_dev* stdio_get_by_name(const char *name)
 	return NULL;
 }
 
+struct stdio_dev *stdio_get_fd(int ioe)
+{
+	switch (ioe) {
+	case stdin:
+	case stdout:
+	case stderr:
+		return stdio_devices[ioe];
+	default:
+		return NULL;
+	}
+}
+
+int stdio_set_fd(int ioe, struct stdio_dev *dev)
+{
+	switch (ioe) {
+	case stdin:
+	case stdout:
+	case stderr:
+		stdio_devices[ioe] = dev;
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
 struct stdio_dev* stdio_clone(struct stdio_dev *dev)
 {
 	struct stdio_dev *_dev;
diff --git a/include/stdio_dev.h b/include/stdio_dev.h
index 23e0ee1..86b2a4f 100644
--- a/include/stdio_dev.h
+++ b/include/stdio_dev.h
@@ -97,6 +97,8 @@ int	stdio_deregister(const char *devname);
 #endif
 struct list_head* stdio_get_list(void);
 struct stdio_dev* stdio_get_by_name(const char* name);
+struct stdio_dev *stdio_get_fd(int ioe);
+int stdio_set_fd(int ioe, struct stdio_dev *dev);
 struct stdio_dev* stdio_clone(struct stdio_dev *dev);
 
 #ifdef CONFIG_ARM_DCC_MULTI
-- 
1.7.10.4