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Merged mcb30-realmode-redesign back to HEAD

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This commit is contained in:
Michael Brown
2005-04-08 15:01:17 +00:00
parent de5d935135
commit 0ff80b477d
100 changed files with 4877 additions and 4263 deletions
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143
src/core/misc.c
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@@ -3,13 +3,7 @@ MISC Support Routines
**************************************************************************/
#include "etherboot.h"
#ifdef CONSOLE_BTEXT
#include <btext.h>
#endif
#ifdef CONSOLE_PC_KBD
#include <pc_kbd.h>
#endif
#include "console.h"
/**************************************************************************
IPCHKSUM - Checksum IP Header
@@ -170,7 +164,6 @@ int inet_aton(const char *start, in_addr *i)
return p - start;
}
unsigned long strtoul(const char *p, const char **endp, int base)
{
unsigned long ret = 0;
@@ -185,140 +178,6 @@ unsigned long strtoul(const char *p, const char **endp, int base)
}
#define K_RDWR 0x60 /* keyboard data & cmds (read/write) */
#define K_STATUS 0x64 /* keyboard status */
#define K_CMD 0x64 /* keybd ctlr command (write-only) */
#define K_OBUF_FUL 0x01 /* output buffer full */
#define K_IBUF_FUL 0x02 /* input buffer full */
#define KC_CMD_WIN 0xd0 /* read output port */
#define KC_CMD_WOUT 0xd1 /* write output port */
#define KB_SET_A20 0xdf /* enable A20,
enable output buffer full interrupt
enable data line
disable clock line */
#define KB_UNSET_A20 0xdd /* enable A20,
enable output buffer full interrupt
enable data line
disable clock line */
enum { Disable_A20 = 0x2400, Enable_A20 = 0x2401, Query_A20_Status = 0x2402,
Query_A20_Support = 0x2403 };
#if defined(PCBIOS) && !defined(IBM_L40)
static void empty_8042(void)
{
unsigned long time;
char st;
time = currticks() + TICKS_PER_SEC; /* max wait of 1 second */
while ((((st = inb(K_CMD)) & K_OBUF_FUL) ||
(st & K_IBUF_FUL)) &&
currticks() < time)
inb(K_RDWR);
}
#endif /* IBM_L40 */
#if defined(PCBIOS)
/*
* Gate A20 for high memory
*/
void gateA20_set(void)
{
#warning "gateA20_set should test to see if it is already set"
if (int15(Enable_A20) == 0) {
return;
}
#ifdef IBM_L40
outb(0x2, 0x92);
#else /* IBM_L40 */
empty_8042();
outb(KC_CMD_WOUT, K_CMD);
empty_8042();
outb(KB_SET_A20, K_RDWR);
empty_8042();
#endif /* IBM_L40 */
}
#endif
int last_putchar; // From filo
void
putchar(int c)
{
c &= 0xff;
last_putchar = c;
if (c == '\n')
putchar('\r');
#ifdef CONSOLE_FIRMWARE
console_putc(c);
#endif
#ifdef CONSOLE_DIRECT_VGA
vga_putc(c);
#endif
#ifdef CONSOLE_BTEXT
btext_putc(c);
#endif
#ifdef CONSOLE_SERIAL
serial_putc(c);
#endif
}
/**************************************************************************
GETCHAR - Read the next character from input device WITHOUT ECHO
**************************************************************************/
int getchar(void)
{
int c = 256;
do {
#if defined(PCBIOS) && defined(POWERSAVE)
/* Doze for a while (until the next interrupt). This works
* fine, because the keyboard is interrupt-driven, and the
* timer interrupt (approx. every 50msec) takes care of the
* serial port, which is read by polling. This reduces the
* power dissipation of a modern CPU considerably, and also
* makes Etherboot waiting for user interaction waste a lot
* less CPU time in a VMware session. */
cpu_nap();
#endif /* POWERSAVE */
#ifdef CONSOLE_FIRMWARE
if (console_ischar())
c = console_getc();
#endif
#ifdef CONSOLE_SERIAL
if (serial_ischar())
c = serial_getc();
#endif
#ifdef CONSOLE_PC_KBD
if (kbd_ischar())
c = kbd_getc();
#endif
} while (c==256);
if (c == '\r')
c = '\n';
return c;
}
int iskey(void)
{
#ifdef CONSOLE_FIRMWARE
if (console_ischar())
return 1;
#endif
#ifdef CONSOLE_SERIAL
if (serial_ischar())
return 1;
#endif
#ifdef CONSOLE_PC_KBD
if (kbd_ischar())
return 1;
#endif
return 0;
}
#if DEBUG_UTILS