libpayload: Add PDCurses and ncurses' libform/libmenu

PDCurses provides an alternative implementation of the curses library
standard in addition to tinycurses.
Where tinycurses is really tiny, PDCurses is more complete and provides
virtually unlimited windows and the full API.
The PDCurses code is brought in "vanilla", with all local changes
residing in curses/pdcurses-backend/

In addition to a curses library, this change also provides libpanel (as
part of the PDCurses code), and libform and libmenu which were derived
from ncurses-5.9.
As they rely on ncurses internals (and PDCurses is not ncurses), more
changes were required for these libraries to work.

The build system is extended to install the right set of header files
depending on the selected curses implementation.

Change-Id: I9e5b920f94b6510da01da2f656196a993170d1c5
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/106
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>

1 files changed, 194 insertions, 0 deletions

diff --git a/payloads/libpayload/curses/pdcurses-backend/pdckbd.c b/payloads/libpayload/curses/pdcurses-backend/pdckbd.c
new file mode 100644
index 0000000000..4a039ffbc4
--- /dev/null
+++ b/payloads/libpayload/curses/pdcurses-backend/pdckbd.c
@@ -0,0 +1,194 @@
+/* Public Domain Curses */
+                          
+#include "lppdc.h"
+#include <usb/usb.h>
+
+unsigned long pdc_key_modifiers = 0L;
+
+#ifdef CONFIG_SERIAL_CONSOLE
+/* We treat serial like a vt100 terminal.  For now we
+   do the cooking in here, but we should probably eventually
+   pass it to dedicated vt100 code */
+
+static int getkeyseq(char *buffer, int len, int max)
+{
+	int i;
+
+	while (1) {
+		for(i = 0; i < 75; i++) {
+			if (serial_havechar())
+				break;
+			mdelay(1);
+		}
+
+		if (i == 75)
+			return len;
+
+		buffer[len++] = serial_getchar();
+		if (len == max)
+			return len;
+	}
+}
+
+static struct {
+	const char *seq;
+	int key;
+} escape_codes[] = {
+	{ "[A", KEY_UP },
+	{ "[B", KEY_DOWN },
+	{ "[C", KEY_RIGHT },
+	{ "[D", KEY_LEFT },
+	{ "[F", KEY_END },
+	{ "[H", KEY_HOME },
+	{ "[2~", KEY_IC },
+	{ "[3~", KEY_DC },
+	{ "[5~", KEY_PPAGE },
+	{ "[6~", KEY_NPAGE },
+	{ "OP", KEY_F(1) },
+	{ "OQ", KEY_F(2) },
+	{ "OR", KEY_F(3) },
+	{ "OS", KEY_F(4) },
+	{ "[15~", KEY_F(5) },
+	{ "[17~", KEY_F(6) },
+	{ "[18~", KEY_F(7) },
+	{ "[19~", KEY_F(8) },
+	{ "[20~", KEY_F(9) },
+	{ "[21~", KEY_F(10) },
+	{ "[23~", KEY_F(11) },
+	{ "[24~", KEY_F(12) },
+	{ NULL },
+};
+
+static int handle_escape(void)
+{
+	char buffer[5];
+	int len = getkeyseq(buffer, 0, sizeof(buffer));
+	int i, t;
+
+	if (len == 0)
+		return 27;
+
+	for(i = 0; escape_codes[i].seq != NULL; i++) {
+		const char *p = escape_codes[i].seq;
+
+		for(t = 0; t < len; t++) {
+			if (!*p || *p != buffer[t])
+				break;
+			p++;
+		}
+
+		if (t == len)
+			return escape_codes[i].key;
+	}
+
+	return 0;
+}
+
+static int cook_serial(unsigned char ch)
+{
+	switch(ch) {
+	case 8:
+		return KEY_BACKSPACE;
+
+	case 27:
+		return handle_escape();
+
+	default:
+		return ch;
+	}
+}
+#endif
+
+void PDC_set_keyboard_binary(bool on)
+{
+    PDC_LOG(("PDC_set_keyboard_binary() - called\n"));
+}
+
+/* check if a key event is waiting */
+
+bool PDC_check_key(void)
+{
+#ifdef CONFIG_USB_HID
+    usb_poll();
+    if ((curses_flags & F_ENABLE_CONSOLE) &&
+        usbhid_havechar()) {
+        return TRUE;
+    }
+#endif
+
+#ifdef CONFIG_PC_KEYBOARD
+    if ((curses_flags & F_ENABLE_CONSOLE) &&
+        keyboard_havechar()) {
+        return TRUE;
+    }
+#endif
+
+#ifdef CONFIG_SERIAL_CONSOLE
+    if ((curses_flags & F_ENABLE_SERIAL) &&
+        serial_havechar()) {
+        return TRUE;
+    }
+#endif
+
+    return FALSE;
+}
+
+/* return the next available key event */
+
+int PDC_get_key(void)
+{
+    int c = 0;
+
+#ifdef CONFIG_USB_HID
+    usb_poll();
+    if ((curses_flags & F_ENABLE_CONSOLE) &&
+        usbhid_havechar()) {
+        c = usbhid_getchar();
+    }
+#endif
+
+#ifdef CONFIG_PC_KEYBOARD
+    if ((curses_flags & F_ENABLE_CONSOLE) &&
+        keyboard_havechar()) {
+        c = keyboard_getchar();
+    }
+#endif
+
+#ifdef CONFIG_SERIAL_CONSOLE
+    if ((curses_flags & F_ENABLE_SERIAL) &&
+        serial_havechar()) {
+        c = cook_serial(serial_getchar());
+    }
+#endif
+
+    SP->key_code = FALSE;
+
+    if (c == 0) {
+        c = ERR;
+    }
+    if (c >= KEY_MIN) {
+        SP->key_code = TRUE;
+    }
+
+    return c;
+}
+
+/* discard any pending keyboard input -- this is the core 
+   routine for flushinp() */
+
+void PDC_flushinp(void)
+{
+    PDC_LOG(("PDC_flushinp() - called\n"));
+
+    while (PDC_check_key()) PDC_get_key();
+}
+
+int PDC_mouse_set(void)
+{
+    return ERR;
+}
+
+int PDC_modifiers_set(void)
+{
+    return OK;
+}