[Suspend2][ 07/21] [Suspend2] Serialise userui configuration info.

[Nigel Cunningham <nigel@suspend2.net>]

Save and load routines for storing the userspace user interface
configuration information in the image header.

Signed-off-by: Nigel Cunningham <nigel@suspend2.net>

 kernel/power/ui.c |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)

diff --git a/kernel/power/ui.c b/kernel/power/ui.c
index 21c6be7..16e540d 100644
--- a/kernel/power/ui.c
+++ b/kernel/power/ui.c
@@ -181,3 +181,26 @@ static unsigned long userui_storage_need
 	return sizeof(ui_helper_data.program) + 1 + sizeof(int);
 }
 
+static int userui_save_config_info(char *buf)
+{
+	*((int *) buf) = progress_granularity;
+	memcpy(buf + sizeof(int), ui_helper_data.program, sizeof(ui_helper_data.program));
+	return sizeof(ui_helper_data.program) + sizeof(int) + 1;
+}
+
+static void userui_load_config_info(char *buf, int size)
+{
+	progress_granularity = *((int *) buf);
+	size -= sizeof(int);
+
+	/* Don't load the saved path if one has already been set */
+	if (ui_helper_data.program[0])
+		return;
+
+	if (size > sizeof(ui_helper_data.program))
+		size = sizeof(ui_helper_data.program);
+
+	memcpy(ui_helper_data.program, buf + sizeof(int), size);
+	ui_helper_data.program[sizeof(ui_helper_data.program)-1] = '\0';
+}
+

--
Nigel Cunningham		nigel at suspend2 dot net