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Line 21... |
#include <stdio.h>
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#include <stdio.h>
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#include <string.h>
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#include <string.h>
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#include "ps2kbd.h"
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#include "ps2kbd.h"
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#include "sim-config.h"
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#include "sim-config.h"
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#include "abstract.h"
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#include "abstract.h"
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#include "sched.h"
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/* ASCII to scan code conversion table */
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/* ASCII to scan code conversion table */
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const static struct {
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const static struct {
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/* Whether shift must be pressed */
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/* Whether shift must be pressed */
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unsigned char shift;
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unsigned char shift;
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Line 79... |
static unsigned char kbd_ccmdbyte;
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static unsigned char kbd_ccmdbyte;
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/* Keyboard response pending */
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/* Keyboard response pending */
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static unsigned long kbd_kresp;
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static unsigned long kbd_kresp;
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/* Keyboard slowdown factor */
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static long kbd_slowdown;
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static void kbd_put (unsigned char c)
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static void kbd_put (unsigned char c)
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{
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{
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if (kbd_buf_count >= KBD_MAX_BUF) {
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if (kbd_buf_count >= KBD_MAX_BUF) {
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fprintf (stderr, "WARNING: Keyboard buffer overflow.\n");
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fprintf (stderr, "WARNING: Keyboard buffer overflow.\n");
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} else {
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} else {
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Line 221... |
cont_run = 0;
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cont_run = 0;
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return 0;
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return 0;
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}
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}
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}
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}
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/* Simulation hook. Must be called every couple of clock cycles to simulate incomming data. */
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void kbd_job(int param)
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{
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int c;
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int kbd_int = 0;
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/* Check if there is something waiting, and decode it into kdb_buf */
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if((c = fgetc(kbd_rxfs)) != EOF) {
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scan_decode (c);
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}
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kbd_int = kbd_kresp || kbd_buf_count;
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kbd_int = kbd_kresp || kbd_buf_count ? kbd_ccmdbyte & KBD_CCMDBYTE_INT : 0;
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if (config.sim.verbose && kbd_int)
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printf("Keyboard Interrupt.... kbd_kresp %x kbd_buf_count %x \n", kbd_kresp, kbd_buf_count);
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if (kbd_int) report_interrupt(config.kbd.irq);
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SCHED_ADD(kbd_job, 0, cycles + kbd_slowdown);
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}
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/* Reset all VGAs */
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/* Reset all VGAs */
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void kbd_reset ()
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void kbd_reset ()
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{
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{
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if (config.kbd.enabled) {
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if (config.kbd.enabled) {
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kbd_buf_count = 0;
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kbd_buf_count = 0;
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Line 255... |
if (!(kbd_rxfs = fopen(config.kbd.rxfile, "r"))
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if (!(kbd_rxfs = fopen(config.kbd.rxfile, "r"))
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&& !(kbd_rxfs = fopen(config.kbd.rxfile, "r+"))) {
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&& !(kbd_rxfs = fopen(config.kbd.rxfile, "r+"))) {
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fprintf (stderr, "WARNING: Keyboard has problems with RX file stream.\n");
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fprintf (stderr, "WARNING: Keyboard has problems with RX file stream.\n");
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config.kbd.enabled = 0;
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config.kbd.enabled = 0;
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}
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}
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kbd_slowdown = (long) ((config.sim.system_kfreq * 1000.) / KBD_BAUD_RATE);
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if (kbd_slowdown <= 0) kbd_slowdown = 1;
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if (config.kbd.enabled) SCHED_ADD(kbd_job, 0, cycles + kbd_slowdown);
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}
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}
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}
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}
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void kbd_info()
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void kbd_info()
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Line 271... |
printf("kbd_ccmdbyte: %x\n", kbd_ccmdbyte);
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printf("kbd_ccmdbyte: %x\n", kbd_ccmdbyte);
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printf("kbd_kresp: %x\n", kbd_kresp);
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printf("kbd_kresp: %x\n", kbd_kresp);
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printf("kbd_buf_count: %x\n", kbd_buf_count);
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printf("kbd_buf_count: %x\n", kbd_buf_count);
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}
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}
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/* Simulation hook. Must be called every clock cycle to simulate incomming data. */
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void kbd_clock()
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{
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int c;
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int kbd_int = 0;
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/* Check if there is something waiting, and decode it into kdb_buf */
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if((c = fgetc(kbd_rxfs)) != EOF) {
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scan_decode (c);
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}
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kbd_int = kbd_kresp || kbd_buf_count;
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kbd_int = kbd_kresp || kbd_buf_count ? kbd_ccmdbyte & KBD_CCMDBYTE_INT : 0;
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if (config.sim.verbose && kbd_int)
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printf("Keyboard Interrupt.... kbd_kresp %x kbd_buf_count %x \n", kbd_kresp, kbd_buf_count);
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if (kbd_int) report_interrupt(config.kbd.irq);
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}
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No newline at end of file
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No newline at end of file
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