Add ncurses UI support

Add helper routines to support ncurses UI programs.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

1 files changed, 88 insertions, 0 deletions

diff --git a/ui/ncurses/nc-cui.h b/ui/ncurses/nc-cui.h
new file mode 100644
index 0000000..668776e
--- /dev/null
+++ b/ui/ncurses/nc-cui.h
@@ -0,0 +1,88 @@
+/*
+ *  Copyright (C) 2009 Sony Computer Entertainment Inc.
+ *  Copyright 2009 Sony Corp.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#if !defined(_PB_NC_CUI_H)
+#define _PB_NC_CUI_H
+
+#include <signal.h>
+
+#include "nc-menu.h"
+#include "nc-ked.h"
+
+
+struct cui_opt_data {
+	const struct device *dev;
+	const struct boot_option *opt;
+	uint32_t opt_hash;
+	struct pb_kexec_data *kd;
+};
+
+/**
+ * struct cui - Data structure defining a cui state machine.
+ * @c_sig: Signature for callback type checking, should be cui_sig.
+ * @abort: When set to true signals the state machine to exit.
+ * @current: Pointer to the active nc object.
+ * @main: Pointer to the user supplied main menu.
+ *
+ * Device boot_options are dynamically added and removed from the @main
+ * menu.
+ */
+
+struct cui {
+	enum pb_nc_sig c_sig;
+	sig_atomic_t abort;
+	sig_atomic_t resize;
+	struct nc_scr *current;
+	struct pmenu *main;
+	void *platform_info;
+	unsigned int default_item;
+	int (*on_kexec)(struct cui *cui, struct cui_opt_data *cod);
+};
+
+struct cui *cui_init(void* platform_info,
+	int (*on_kexec)(struct cui *, struct cui_opt_data *));
+struct nc_scr *cui_set_current(struct cui *cui, struct nc_scr *scr);
+int cui_run(struct cui *cui, struct pmenu *main, unsigned int default_item);
+int cui_ked_run(struct pmenu_item *item);
+
+/* convenience routines */
+
+void cui_abort(struct cui *cui);
+void cui_resize(struct cui *cui);
+void cui_on_exit(struct pmenu *menu);
+int cui_run_cmd(struct pmenu_item *item);
+
+static inline struct cui *cui_from_arg(void *arg)
+{
+	struct cui *cui = (struct cui *)arg;
+
+	assert(cui->c_sig == pb_cui_sig);
+	return cui;
+}
+
+static inline struct cui *cui_from_pmenu(struct pmenu *menu)
+{
+	return cui_from_arg(menu->scr.ui_ctx);
+}
+
+static inline struct cui *cui_from_item(struct pmenu_item *item)
+{
+	return cui_from_pmenu(item->pmenu);
+}
+
+#endif