libpayload: Support curses for serial

Support the curses interface over serial by supporting a minimal vt100
terminal.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3370 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Jordan Crouse
2008-06-20 00:01:42 +00:00
parent 4e48408059
commit 3b4706591c
4 changed files with 178 additions and 6 deletions

View File

@@ -43,11 +43,89 @@ static int _halfdelay = 0;
/* ============== Serial ==================== */
/* FIXME: Cook the serial correctly */
/* 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 i;
for(i = 0; i < 75; i++) {
if (serial_havechar())
break;
mdelay(1);
}
if (i == 75)
return len;
buffer[len++] = serial_getchar();
return getkeyseq(buffer, len);
}
static struct {
char *seq;
int key;
} escape_codes[] = {
{ "[A", KEY_UP },
{ "[B", KEY_DOWN },
{ "[C", KEY_RIGHT },
{ "[D", KEY_LEFT },
{ "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) },
{ "[24~", KEY_F(12) },
{ NULL },
};
static int handle_escape(void)
{
char buffer[5];
int len = getkeyseq(buffer, 0);
int i, t;
if (len == 0)
return 27;
for(i = 0; escape_codes[i].seq != NULL; i++) {
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)
{
return (int) ch;
switch(ch) {
case 8:
return KEY_BACKSPACE;
case 13:
return KEY_ENTER;
case 27:
return handle_escape();
default:
return ch;
}
}
/* ================ Keyboard ================ */

View File

@@ -218,6 +218,10 @@ WINDOW *initscr(void)
// newterm(name, stdout, stdin);
// def_prog_mode();
if (curses_flags & F_ENABLE_SERIAL) {
serial_clear();
}
if (curses_flags & F_ENABLE_CONSOLE) {
/* Clear the screen and kill the cursor */
@@ -586,20 +590,48 @@ int whline(WINDOW *win, chtype ch, int n)
win->_flags |= _HASMOVED;
return OK;
}
int wnoutrefresh(WINDOW *win)
{
// FIXME.
int serial_is_bold = 0;
int x, y;
serial_end_bold();
for (y = 0; y <= win->_maxy; y++) {
/* Position the serial cursor */
if (curses_flags & F_ENABLE_SERIAL)
serial_set_cursor(win->_begy + y, win->_begx);
for (x = 0; x <= win->_maxx; x++) {
if (curses_flags & F_ENABLE_SERIAL)
attr_t attr = win->_line[y].text[x].attr;
unsigned int c =
((int)color_pairs[PAIR_NUMBER(attr)]) << 8;
if (curses_flags & F_ENABLE_SERIAL) {
if (attr & A_BOLD) {
if (!serial_is_bold) {
serial_start_bold();
serial_is_bold = 1;
}
}
else {
if (serial_is_bold) {
serial_end_bold();
serial_is_bold = 0;
}
}
serial_putchar(win->_line[y].text[x].chars[0]);
}
if (curses_flags & F_ENABLE_CONSOLE) {
attr_t attr = win->_line[y].text[x].attr;
unsigned int c =
((int)color_pairs[PAIR_NUMBER(attr)]) << 8;
/* Handle some of the attributes. */
if (attr & A_BOLD)