/* Update the Pending Register. This will trigger an interrupt if a bit is
* set.
*/
static void stm32_exti_change_EXTI_PR_bit(Stm32Exti *s, unsigned pos,
unsigned new_bit_value)
{
unsigned old_bit_value;
assert((new_bit_value == 0) || (new_bit_value == 1));
assert(pos < EXTI_LINE_COUNT);
old_bit_value = GET_BIT_VALUE(s->EXTI_PR, pos);
/* Only continue if the PR bit is actually changing value. */
if(new_bit_value != old_bit_value) {
/* If the bit is being reset, the corresponding Software Interrupt Event
* Register bit is automatically reset.
*/
if(!new_bit_value) {
RESET_BIT(s->EXTI_SWIER, pos);
}
/* Update the IRQ for this EXTI line. Some lines share the same
* NVIC IRQ.
*/
if(pos <= 4) {
/* EXTI0 - EXTI4 each have their own NVIC IRQ */
qemu_set_irq(s->irq[pos], new_bit_value);
} else if(pos <= 9) {
/* EXTI5 - EXTI9 share an NVIC IRQ */
qemu_set_irq(s->irq[5], new_bit_value);
} else if(pos <= 15) {
/* EXTI10 - EXTI15 share an NVIC IRQ */
qemu_set_irq(s->irq[6], new_bit_value);
} else if(pos == 16) {
/* PVD IRQ */
qemu_set_irq(s->irq[7], new_bit_value);
} else if(pos == 17) {
/* RTCAlarm IRQ */
qemu_set_irq(s->irq[8], new_bit_value);
} else if(pos == 18) {
/* OTG_FS_WKUP IRQ */
qemu_set_irq(s->irq[9], new_bit_value);
} else if(pos == 19) {
/* ETH_WKUP IRQ */
qemu_set_irq(s->irq[10], new_bit_value);
} else if(pos == 20) {
/* OTG_HS_WKUP IRQ */
qemu_set_irq(s->irq[11], new_bit_value);
} else if(pos == 21) {
/* TAMP_STAMP IRQ */
qemu_set_irq(s->irq[12], new_bit_value);
} else if(pos == 22) {
/* RTC_WKUP IRQ */
qemu_set_irq(s->irq[13], new_bit_value);
} else {
assert(false);
}
/* Update the register. */
CHANGE_BIT(s->EXTI_PR, pos, new_bit_value);
}
}
/* Update a Trigger Selection Register (both the Rising and Falling TSR
* registers are handled by this routine).
*/
static void update_TSR_bit(Stm32Exti *s, uint32_t *tsr_register, unsigned pos,
unsigned new_bit_value)
{
assert((new_bit_value == 0) || (new_bit_value == 1));
assert(pos < EXTI_LINE_COUNT);
if(new_bit_value != GET_BIT_VALUE(*tsr_register, pos)) {
/* According to the documentation, the Pending register is cleared when
* the "sensitivity of the edge detector changes. Is this right??? */
stm32_exti_change_EXTI_PR_bit(s, pos, 0);
}
CHANGE_BIT(*tsr_register, pos, new_bit_value);
}
static void set_mode(byte on_off) {
dat i;
for (i=0; i<=nPar; i++)
/* DEC private modes set/reset */
if (DState & ESques) switch (Par[i]) {
case 1: /* Cursor keys send ^[Ox/^[[x */
CHANGE_BIT(TTY_ALTCURSKEYS, on_off);
*Flags |= TTY_NEEDREFOCUS;
break;
case 3: /* 80/132 mode switch unimplemented */
break;
case 5: /* Inverted screen on/off */
CHANGE_BIT(TTY_INVERTSCR, on_off);
update_eff();
invert_screen();
break;
case 6: /* Origin relative/absolute */
CHANGE_BIT(TTY_RELORIG, on_off);
goto_axy(0,0);
break;
case 7: /* Autowrap on/off */
CHANGE_BIT(TTY_AUTOWRAP, on_off);
break;
case 8: /* Autorepeat on/off */
break;
case 9: /* new style */
CHANGE_BIT(TTY_REPORTMOUSE, on_off);
CHANGE_BIT(TTY_REPORTMOUSE2, tfalse);
Act(ChangeField,Win)
(Win, TWS_window_Attrib, WINDOW_WANT_MOUSE_MOTION|WINDOW_WANT_MOUSE,
on_off ? WINDOW_WANT_MOUSE : 0);
break;
case 25: /* Cursor on/off */
Act(ChangeField,Win)
(Win, TWS_window_Flags, WINDOWFL_CURSOR_ON, on_off ? WINDOWFL_CURSOR_ON : 0);
*Flags |= TTY_UPDATECURSOR;
break;
case 999: /* new style, report also motions */
CHANGE_BIT(TTY_REPORTMOUSE, on_off);
CHANGE_BIT(TTY_REPORTMOUSE2, on_off);
Act(ChangeField,Win)
(Win, TWS_window_Attrib, WINDOW_WANT_MOUSE|WINDOW_WANT_MOUSE_MOTION,
on_off ? WINDOW_WANT_MOUSE|WINDOW_WANT_MOUSE_MOTION : 0);
break;
case 1000: /* classic xterm style */
CHANGE_BIT(TTY_REPORTMOUSE, tfalse);
CHANGE_BIT(TTY_REPORTMOUSE2, on_off);
Act(ChangeField,Win)
(Win, TWS_window_Attrib, WINDOW_WANT_MOUSE|WINDOW_WANT_MOUSE_MOTION,
on_off ? WINDOW_WANT_MOUSE|WINDOW_WANT_MOUSE_MOTION : 0);
break;
/* ANSI modes set/reset */
} else switch (Par[i]) {
case 3: /* Monitor (display ctrls) */
CHANGE_BIT(TTY_DISPCTRL, on_off);
break;
case 4: /* Insert Mode on/off */
CHANGE_BIT(TTY_INSERT, on_off);
break;
case 20: /* Lf, Enter == CrLf/Lf */
CHANGE_BIT(TTY_CRLF, on_off);
break;
}
}
