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formatting (m_xt_ibm5550.c)

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This commit is contained in:
Akamaki
2026-02-15 14:02:53 +09:00
parent 640d94441d
commit c508054cc3
1 changed files with 23 additions and 27 deletions
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50
src/machine/m_xt_ibm5550.c
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@@ -1426,12 +1426,12 @@ typedef struct epochkbd_t {
uint8_t pa;
uint8_t pb;
uint8_t clk_hold;
int mouse_enabled;
uint8_t mouse_queue[4];
int mouse_queue_num;
uint8_t key_waiting;
uint8_t kbd_reset_step;
uint8_t mouse_reset_step;
int mouse_enabled;
int mouse_queue_num;
uint8_t mouse_queue[4];
pc_timer_t send_delay_timer;
} epochkbd_t;
@@ -1456,8 +1456,7 @@ kbd_epoch_poll(void *priv)
if (kbd->want_irq) {
kbd->want_irq = 0;
kbd->pa = kbd->key_waiting;
// kbd->clock |= 0x04;
kbd->blocked = 1;
kbd->blocked = 1;
picint(EPOCH_IRQ3_BIT);
epoch_kbdlog("epochkbd: kbd_poll(): keyboard_xt : take IRQ\n");
}
@@ -1465,17 +1464,15 @@ kbd_epoch_poll(void *priv)
if (!kbd->blocked) {
if (kbd->mouse_queue_num > 0) {
kbd->mouse_queue_num--;
kbd->key_waiting = kbd->mouse_queue[kbd->mouse_queue_num];
kbd->key_waiting = kbd->mouse_queue[kbd->mouse_queue_num];
epoch_kbdlog("epochkbd: reading %02X from the mouse queue at %i\n", kbd->key_waiting, kbd->mouse_queue_num);
kbd->want_irq = 1;
}
else if (key_queue_start != key_queue_end) {
} else if (key_queue_start != key_queue_end) {
kbd->key_waiting = key_queue[key_queue_start];
epoch_kbdlog("epochkbd: reading %02X from the key queue at %i\n",
kbd->key_waiting, key_queue_start);
key_queue_start = (key_queue_start + 1) & 0x0f;
kbd->want_irq = 1;
}
}
}
@@ -1530,13 +1527,13 @@ static void
kbd_write(uint16_t port, uint8_t val, void *priv)
{
epochkbd_t *kbd = (epochkbd_t *) priv;
uint8_t new_clock;
epoch_kbdlog("%04X:%04X epochkbd: Port %02X out: %02X BX: %04x", cs >> 4, cpu_state.pc, port, val,BX);
epoch_kbdlog(" Clk: %x %x\n", kbd->blocked,kbd->clk_hold);
uint8_t new_clock;
epoch_kbdlog("%04X:%04X epochkbd: Port %02X out: %02X BX: %04x", cs >> 4, cpu_state.pc, port, val, BX);
epoch_kbdlog(" Clk: %x %x\n", kbd->blocked, kbd->clk_hold);
switch (port) {
case 0x60:
if ((kbd->pb & 0x10) && (val & 0xf0) == 0xd0) {
case 0x60: /* Diagnostic Output */
if ((kbd->pb & 0x10) && ((val & 0xf0) == 0xd0)) {
kbd->mouse_enabled = 1;
epoch_kbdlog("epochkbd: Mouse is enabled.\n");
}
@@ -1551,7 +1548,7 @@ kbd_write(uint16_t port, uint8_t val, void *priv)
key_queue_start = key_queue_end = 0;
kbd->want_irq = 0;
kbd->blocked = 0;
kbd->kbd_reset_step = 0;
kbd->kbd_reset_step = 0;
kbd->clk_hold = 0;
kbd->mouse_enabled = 0;
kbd->mouse_queue_num = 0;
@@ -1602,7 +1599,7 @@ static uint8_t
kbd_read(uint16_t port, void *priv)
{
epochkbd_t *kbd = (epochkbd_t *) priv;
uint8_t ret = 0;
uint8_t ret = 0;
switch (port) {
case 0x60: /* Keyboard Data Register (aka Port A) */
@@ -1610,18 +1607,18 @@ kbd_read(uint16_t port, void *priv)
break;
case 0x61: /* Keyboard Control Register (aka Port B) */
ret = kbd->pb & 0xf0;/* reset sense bit */
ret |= 0x0c; /* reset sense bit */
ret = kbd->pb & 0xf0; /* reset sense bit */
ret |= 0x0c; /* reset sense bit */
if (kbd->kbd_reset_step < 18) {
ret &= 0xf3;
if (!!(kbd->kbd_reset_step & 1))
ret |= 0x04;
switch (kbd->kbd_reset_step >> 1) { /* AAh (0 1010 1010) in serial data */
case 0:
case 2:
case 4:
case 6:
case 8:
case 2:
case 4:
case 6:
case 8:
ret |= 0x08;
break;
default:
@@ -1631,10 +1628,9 @@ kbd_read(uint16_t port, void *priv)
epoch_kbdlog(" reset step: %d %x %x", kbd->kbd_reset_step, ret & 0x08, ret & 0x04);
epoch_kbdlog(" Clk: %x %x\n", kbd->blocked, kbd->clk_hold);
kbd->kbd_reset_step++;
/* Specific 5556 keyboards send three bytes of identification code,
but this simply sends AAh that can pass the IPL and DOS K3.4 init. */
/* Specific 5556 keyboards send three bytes of identification code,
but this simply sends AAh that can pass the IPL and DOS K3.4 init. */
if (kbd->kbd_reset_step == 18)
// kbd->pa = 0xaa;
kbd_epoch_adddata(0xaa);
} else if (kbd->mouse_reset_step < 20) {
ret &= 0xf3;
@@ -1643,13 +1639,13 @@ kbd_read(uint16_t port, void *priv)
epoch_kbdlog(" reset step: %d %x %x\n", kbd->mouse_reset_step, ret & 0x08, ret & 0x04);
kbd->mouse_reset_step++;
}
/* Bit 1: Timer 2 (Speaker) out state */
if (pit_devs[0].get_outlevel(pit_devs[0].data, TIMER_CTR_2) && speaker_enable)
ret &= 0xfd; /* 1111 1101 */
else
ret |= 0x02;
break;
default:
break;